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1

Li, Yawen, Ming-Kuan Chyan, Donald K. Hamlin, Holly Nguyen, Eva Corey, and D. Scott Wilbur. "Oxidation of p-[125I]Iodobenzoic Acid and p-[211At]Astatobenzoic Acid Derivatives and Evaluation In Vivo." International Journal of Molecular Sciences 23, no. 18 (2022): 10655. http://dx.doi.org/10.3390/ijms231810655.

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The alpha particle-emitting radionuclide astatine-211 (211At) is of interest for targeted radiotherapy; however, low in vivo stability of many 211At-labeled cancer-targeting molecules has limited its potential. As an alternative labeling method, we evaluated whether a specific type of astatinated aryl compound that has the At atom in a higher oxidation state might be stable to in vivo deastatination. In the research effort, para-iodobenzoic acid methyl ester and dPEG4-amino acid methyl ester derivatives were prepared as HPLC standards. The corresponding para-stannylbenzoic acid derivatives wer
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2

Wilbur, D. "[211At]Astatine-Labeled Compound Stability: Issues with Released [211At]Astatide and Development of Labeling Reagents to Increase Stability." Current Radiopharmaceuticalse 1, no. 3 (2008): 144–76. http://dx.doi.org/10.2174/1874471010801030144.

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3

Nagao, Y., M. Yamaguchi, S. Watanabe, N. S. Ishioka, N. Kawachi, and H. Watabe. "Performance improvement of Compton imaging of astatine-211 by optimising coincidence time windows." Journal of Instrumentation 16, no. 12 (2021): C12031. http://dx.doi.org/10.1088/1748-0221/16/12/c12031.

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Abstract Astatine-211 is one of the promising radioisotopes for targeted alpha therapy. Optimising treatment strategies as well as determining the suitability of a given agent for a particular patient requires to image the time-dependent distribution of the targeted radiotherapeutic agent both in tumours and in normal tissues. Since the biodistribution of astatine is different from that of iodine, imaging astatine-211 directly is essential. In the previous study of astatine-211 Compton imaging, random coincidence events due to polonium K-shell X-rays were dominant and seemed to cause saturatio
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4

CORSON, DALE R. "ASTATINE." Chemical & Engineering News 81, no. 36 (2003): 158. http://dx.doi.org/10.1021/cen-v081n036.p158.

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5

Meyer, Geerd-J. "Astatine." Journal of Labelled Compounds and Radiopharmaceuticals 61, no. 3 (2018): 154–64. http://dx.doi.org/10.1002/jlcr.3573.

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6

Aneheim, Emma, Tom Bäck, Holger Jensen, Stig Palm, and Sture Lindegren. "A proposed production method for astatinated (At-211) Trastuzumab for use in a Phase I clinical trial." PLOS ONE 19, no. 9 (2024): e0307543. http://dx.doi.org/10.1371/journal.pone.0307543.

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Astatine-211 is a nuclide with a short half-life of 7.2 h, that show promise for targeted alpha therapy of disseminated cancer. Despite nuclide production being straight-forward using a medium energy cyclotron and an uncomplicated target, not many cyclotrons are currently producing the nuclide. In this work we propose a stream-lined method to produce astatine labelled antibodies that enable production of clinical doses at other sites, remote from the nuclide producing cyclotron. Preconjugating the antibody prior to labelling, quick and efficient astatine recovery from the irradiated target in
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7

Takashima, Hiroki, Shino Manabe, Ryo Tsumura, et al. "Abstract 4344: Broader therapeutic window via combining sodium ascorbate for protecting radioactive antibodies from radiolysis and sodium perchlorate for blocking sodium iodide symporter in radioimmunotherapy with astatine-211." Cancer Research 85, no. 8_Supplement_1 (2025): 4344. https://doi.org/10.1158/1538-7445.am2025-4344.

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Background: Increasing attention has been paid to developing new cancer treatments with alpha particles characterized by a high linear energy transfer (LET) and a range of 50-100 µm in tissue, which is equivalent to 5-10 cells. Due to the short path length, tumor-selective accumulation of alpha particles is pivotal for achieving a reasonable therapeutic window. Previously, we demonstrated that reactive oxygen species (ROS) generated via the radiolysis of water in storage solution denature antibodies labeled with astatine-211, an alpha emitter, which results in disrupted specific binding activi
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8

Wilbur, D. Scott. "Enigmatic astatine." Nature Chemistry 5, no. 3 (2013): 246. http://dx.doi.org/10.1038/nchem.1580.

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9

Sarr, Serigne, Julien Pilmé, Gilles Montavon, Jean-Yves Le Questel, and Nicolas Galland. "Astatine Facing Janus: Halogen Bonding vs. Charge-Shift Bonding." Molecules 26, no. 15 (2021): 4568. http://dx.doi.org/10.3390/molecules26154568.

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The nature of halogen-bond interactions was scrutinized from the perspective of astatine, potentially the strongest halogen-bond donor atom. In addition to its remarkable electronic properties (e.g., its higher aromaticity compared to benzene), C6At6 can be involved as a halogen-bond donor and acceptor. Two-component relativistic calculations and quantum chemical topology analyses were performed on C6At6 and its complexes as well as on their iodinated analogues for comparative purposes. The relativistic spin–orbit interaction was used as a tool to disclose the bonding patterns and the mechanis
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10

Yagishita, Atsushi, Miho Katsuragawa, Shin’ichiro Takeda, et al. "Development and Utility of an Imaging System for Internal Dosimetry of Astatine-211 in Mice." Bioengineering 11, no. 1 (2023): 25. http://dx.doi.org/10.3390/bioengineering11010025.

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In targeted radionuclide therapy, determining the absorbed dose of the ligand distributed to the whole body is vital due to its direct influence on therapeutic and adverse effects. However, many targeted alpha therapy drugs present challenges for in vivo quantitative imaging. To address this issue, we developed a planar imaging system equipped with a cadmium telluride semiconductor detector that offers high energy resolution. This system also comprised a 3D-printed tungsten collimator optimized for high sensitivity to astatine-211, an alpha-emitting radionuclide, and adequate spatial resolutio
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11

Dzhuzha, D., and S. Myasoyedov. "Radionuclide therapy with alpha-emitters." Radiation Diagnostics, Radiation Therapy, no. 4 (2019): 37–47. http://dx.doi.org/10.37336/2707-0700-2019-4-4.

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In this review the main streams of using alpha-emitters radium-223, actinium-225, bismuth-213, astatine-211 in complex treatment of malignant tumors are reviewed. The features of radiobiological actions of alpha-emission make its more effective in hundred times than beta-emission. The efficacy of this kind of radionuclide therapy does not dependent from chemoresistance and radioresistance to beta-emitters. The results of experimental and initial clinical investigation, which indicate on promising further investigations in this direction, were revealed. Key words: radionuclide therapy of malign
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12

Nemec, S. "Glomus intraradix effects on citrus rootstock seedling growth in various potting media." Journal of Agricultural Science 118, no. 3 (1992): 315–23. http://dx.doi.org/10.1017/s0021859600070684.

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SUMMARYFive potting media components mixed in various combinations and in various percentages of one with another (0, 14·3, 29, 42, 57, 71 and 100% by volume of the second component with the first) were inoculated with Glomus intraradix in six experiments. Seedlings of citrus rootstocks were grown from seed in these mixes. Sour orange in inoculated peat plus vermiculite, Astatula fine sand plus vermiculite, and peat plus Perlite® in all percentage combinations grew c. two- to threefold taller than noninoculated control plants. Up to twofold growth increases of sour orange occurred in vermiculi
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13

Graton, Jérôme, Seyfeddine Rahali, Jean-Yves Le Questel, Gilles Montavon, Julien Pilmé, and Nicolas Galland. "Spin–orbit coupling as a probe to decipher halogen bonding." Physical Chemistry Chemical Physics 20, no. 47 (2018): 29616–24. http://dx.doi.org/10.1039/c8cp05690k.

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14

Bigourdan, Théo, Arnaud Cadiou, Arnaud Guertin, and Ferid Haddad. "Discussions on liquid bismuth target use as an alternative for astatine-211 production." EPJ Web of Conferences 285 (2023): 09002. http://dx.doi.org/10.1051/epjconf/202328509002.

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Astatine-211 is an alpha emitter that has been identified as a good candidate for targeted alpha therapy. There is an increasing demand on this radionuclide. Very intense beam from linac being put in operation nowadays could be used to meet this demand. This document presents the design exploration of concepts of liquid bismuth targets dedicated to astatine-211 production. Three concepts are presented and analyzed: a capsule, a fluid loop and a windowless fluid loop. Structural and thermal sizing were performed using mechanical Finite Element models (ANSYS Workbench) and Computational Fluid Dy
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15

Galland, N., G. Montavon, J. Y. Le Questel, and J. Graton. "Quantum calculations of At-mediated halogen bonds: on the influence of relativistic effects." New Journal of Chemistry 42, no. 13 (2018): 10510–17. http://dx.doi.org/10.1039/c8nj00484f.

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16

Garkushin, Ivan K., Olga V. Lavrenteva, Yana A. Andreeva, and Karina R. Gilmanova. "Analytical description of the specific electric conductivity of halogenides KHal melts and its calculation for the KAt melt." Butlerov Communications 58, no. 6 (2019): 138–45. http://dx.doi.org/10.37952/roi-jbc-01/19-58-6-138.

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In this paper, the analytical description of the specific conductivity of the potassium halogenides melts KHal (Hal – F, Cl, Br, I) is presented. The analitical description is provided on dependence of the specific conductivity on the halogen order number ӕ = f(Z), the ionic radius of halogen-ion ӕ = f(r), the ionic potential ӕ = f(1/r), the electronegativity difference ӕ = f(∆χ) ((∆χ = χ (Hal) – χ(K)). The interrelation of a reduced property with an order number ӕ/Z = f(Z) is considered. According to the obtained analytical dependencies, the calculation of the value of the potassium astatide
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17

Rossi, Elisa, Matteo De Santis, Diego Sorbelli, Loriano Storchi, Leonardo Belpassi, and Paola Belanzoni. "Spin–orbit coupling is the key to unraveling intriguing features of the halogen bond involving astatine." Physical Chemistry Chemical Physics 22, no. 4 (2020): 1897–910. http://dx.doi.org/10.1039/c9cp06293a.

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18

Gouard, Sébastien, Catherine Maurel, Séverine Marionneau-Lambot, et al. "Targeted-Alpha-Therapy Combining Astatine-211 and anti-CD138 Antibody in a Preclinical Syngeneic Mouse Model of Multiple Myeloma Minimal Residual Disease." Cancers 12, no. 9 (2020): 2721. http://dx.doi.org/10.3390/cancers12092721.

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Despite therapeutic progress in recent years with the introduction of targeted therapies (daratumumab, elotuzumab), multiple myeloma remains an incurable cancer. The question is therefore to investigate the potential of targeted alpha therapy, combining an anti-CD138 antibody with astatine-211, to destroy the residual cells that cause relapses. A preclinical syngeneic mouse model, consisting of IV injection of 1 million of 5T33 cells in a KaLwRij C57/BL6 mouse, was treated 10 days later with an anti-mCD138 antibody, called 9E7.4, radiolabeled with astatine-211. Four activities of the 211At-9E7
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19

Roy, Kamalika, and Susanta Lahiri. "Production and separation of Astatine Radionuclides: Some new addition to Astatine Chemistry." Applied Radiation and Isotopes 66, no. 5 (2008): 571–76. http://dx.doi.org/10.1016/j.apradiso.2007.12.005.

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20

Zhou, Fengxiang, Yuan Liu, Zhaoxu Wang, et al. "A new type of halogen bond involving multivalent astatine: an ab initio study." Physical Chemistry Chemical Physics 21, no. 28 (2019): 15310–18. http://dx.doi.org/10.1039/c9cp02406a.

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21

Molina, B., J. R. Soto, and J. J. Castro. "Halogen-like properties of the Al13 cluster mimicking astatine." Physical Chemistry Chemical Physics 20, no. 17 (2018): 11549–53. http://dx.doi.org/10.1039/c8cp00494c.

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22

Liu, Lu, Seyfeddine Rahali, Rémi Maurice, et al. "An expanded halogen bonding scale using astatine." Chemical Science 12, no. 32 (2021): 10855–61. http://dx.doi.org/10.1039/d1sc02133h.

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Based on the halogen bonding between astatine monoiodide (AtI) and 16 Lewis bases, the newly established pKBAtI scale indicates that the halogen bond basicity of AtI follows the order C ≤ O ≤ S ≈ Se for the acceptor atomic site.
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23

Toyoshima, Atsushi, and Atsushi Shinohara. "Nuclear Chemistry of Astatine (At)." RADIOISOTOPES 67, no. 10 (2018): 461–69. http://dx.doi.org/10.3769/radioisotopes.67.461.

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24

Vaidyanathan, Ganesan, and Michael Zalutsky. "Astatine Radiopharmaceuticals: Prospects and Problems." Current Radiopharmaceuticalse 1, no. 3 (2008): 177–96. http://dx.doi.org/10.2174/1874471010801030177.

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25

R. Zalutsky, Michael, and Marek Pruszynski. "Astatine-211: Production and Availability." Current Radiopharmaceuticalse 4, no. 3 (2011): 177–85. http://dx.doi.org/10.2174/1874471011104030177.

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26

Lindegren, Sture, Tom Bäck, Stig Palm, Holger Jensen, Per Albertsson, and Emma Aneheim. "Astatine-211: The Chemistry Infrastructure." Journal of Medical Imaging and Radiation Sciences 50, no. 4 (2019): S94. http://dx.doi.org/10.1016/j.jmir.2019.11.081.

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27

Lindegren, Sture, Tom Bäck, Stig Palm, Holger Jensen, Per Albertsson, and Emma Aneheim. "Astatine-211: The Chemistry Infrastructure." Journal of Medical Imaging and Radiation Sciences 50, no. 1 (2019): S24. http://dx.doi.org/10.1016/j.jmir.2019.03.076.

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28

Milesz, S., M. Jovchev, D. Schumann, V. A. Khalkin, and M. Milanov. "The EDTA complexes of astatine." Journal of Radioanalytical and Nuclear Chemistry Letters 127, no. 3 (1988): 193–98. http://dx.doi.org/10.1007/bf02164864.

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29

Ostrowski, Sławomir, Agnieszka Majkowska-Pilip, Aleksander Bilewicz, and Jan Cz Dobrowolski. "On AunAt clusters as potential astatine carriers." RSC Advances 7, no. 57 (2017): 35854–57. http://dx.doi.org/10.1039/c7ra05224c.

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To understand interactions between astatine atoms with gold clusters the Au<sub>n</sub>At and Au<sub>n</sub>X clusters, n = 12 or 13, X = F, Cl, Br, and I, were calculated at the DFT level using basis sets with a quasi-relativistic pseudopotential.
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30

Baran, Enrique J. "Vibrational Properties of Hydrogen Astatide, HAt." Zeitschrift für Naturforschung A 59, no. 3 (2004): 133–35. http://dx.doi.org/10.1515/zna-2004-0306.

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A number of theoretical studies on the bond characteristics of HAt, the heaviest hydrogen halide, have recently been reported. On the basis of these data the force constant, mean amplitudes of vibration and thermodynamic functions of this molecule have been calculated. Some comparisons with the related lighter hydracids are made.
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31

Thornton, Brett, and Shawn Burdette. "Three more unsung women – astatine discovery." Nature 567, no. 7748 (2019): 311. http://dx.doi.org/10.1038/d41586-019-00929-w.

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32

Ünak, Turan. "Some microdosmetric data on Astatine-211." Applied Radiation and Isotopes 58, no. 1 (2003): 115–17. http://dx.doi.org/10.1016/s0969-8043(02)00260-9.

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33

Sam Lemonick. "The puzzle and promise of astatine." C&EN Global Enterprise 98, no. 31 (2020): 22–24. http://dx.doi.org/10.1021/cen-09831-feature2.

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34

Hawkes, Stephen J. "Polonium and Astatine Are Not Semimetals." Journal of Chemical Education 87, no. 8 (2010): 783. http://dx.doi.org/10.1021/ed100308w.

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35

Takahashi, N., and H. Baba. "Anomalous solvent extraction behavior of astatine." Journal of Radioanalytical and Nuclear Chemistry 218, no. 1 (1997): 103–5. http://dx.doi.org/10.1007/bf02033983.

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36

Guminski, C. "The At-Hg (astatine-mercury) system." Journal of Phase Equilibria 16, no. 6 (1995): 525. http://dx.doi.org/10.1007/bf02646723.

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37

Zegeye, Abebe. "Mulatu Astatke, Ethio-jazz maestro." Muziki 4, no. 1 (2007): 129–51. http://dx.doi.org/10.1080/18125980701754645.

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38

Nishinaka, I., K. Hashimoto, and H. Suzuki. "Speciation of astatine reacted with oxidizing and reducing reagents by thin layer chromatography: formation of volatile astatine." Journal of Radioanalytical and Nuclear Chemistry 322, no. 3 (2019): 2003–9. http://dx.doi.org/10.1007/s10967-019-06900-3.

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39

Cobb, L. M., A. Harrison, and S. A. Butler. "Toxicity of Astatine-211 in the Mouse." Human Toxicology 7, no. 6 (1988): 529–34. http://dx.doi.org/10.1177/096032718800700602.

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The toxicity of the α particle emitting halogen astatine-211 was examined in male and female mice. Pathological changes were seen in mice killed at 14 days and/or at 56 days following a single injection of 61 kBq211 At per g body weight. The tissues affected, in order of severity were: spleen, lymph nodes, bone marrow, gonads, thyroid, salivary glands and stomach.
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40

عبدالعزيز, ريهام حسن. "Publishing and Studying aStatue of a Reclining Lion from Tebtynis." أوراق کلاسيکية 21, no. 21 (2024): 0. http://dx.doi.org/10.21608/acl.2024.393440.

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41

KACZMAREK, ٜUKASZ. "New records of and key to Tardigrada from Costa Rica." Zootaxa 177, no. 1 (2003): 1. http://dx.doi.org/10.11646/zootaxa.177.1.1.

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Moss samples collected near the research station “La Selva” on the edge of Costa Rican tropical rain forest has yielded three species of Tardigrada: Hypsibius pallidus Thulin, Astatumen trinacriae (Arcidiacono) and Macrobiotus polyopus Marcus. Another three unidentified species from the genus Macrobiotus were also found. All identified species are new for Costa Rica. A key to the identification of all known species from Costa Rica is given.
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42

Ghalei, Mohammad, Parastoo Mahdi Khoshouei, Johan Vandenborre, et al. "Influence of radiolysis on astatine-211 chemistry." Nuclear Medicine and Biology 108-109 (May 2022): S142. http://dx.doi.org/10.1016/s0969-8051(22)00306-7.

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43

Lambrecht, Richard M., and Saed Mirzadeh. "Cyclotron isotopes and radiopharmaceuticals—XXXV astatine-211." International Journal of Applied Radiation and Isotopes 36, no. 6 (1985): 443–50. http://dx.doi.org/10.1016/0020-708x(85)90207-8.

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44

Kambali, I. "Calculated astatine-211 production yields for radioimmunotherapy." Journal of Physics: Conference Series 1116 (December 2018): 032013. http://dx.doi.org/10.1088/1742-6596/1116/3/032013.

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45

Leimbach, D., S. Rothe, J. Sundberg, and D. Hanstorp. "Determination of the electron affinity of astatine." Journal of Physics: Conference Series 1412 (January 2020): 132024. http://dx.doi.org/10.1088/1742-6596/1412/13/132024.

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46

Pruszyński, M., A. Bilewicz, B. Wąs, and B. Petelenz. "Formation and stability of astatide-mercury complexes." Journal of Radioanalytical and Nuclear Chemistry 268, no. 1 (2006): 91–94. http://dx.doi.org/10.1007/s10967-006-0129-2.

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47

Burke, D. G., H. Folger, H. Gabelmann, et al. "New neutron-rich isotopes of astatine and bismuth." Zeitschrift für Physik A Atomic Nuclei 333, no. 2 (1989): 131–35. http://dx.doi.org/10.1007/bf01565142.

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48

Brown, I. "Astatine-211: Its possible applications in cancer therapy." International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes 37, no. 8 (1986): 789–98. http://dx.doi.org/10.1016/0883-2889(86)90273-x.

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49

Kassis, A. I., C. R. Harris, and S. J. Adelstein. "The in Vitro Radiobiology of Astatine-211 Decay." Radiation Research 105, no. 1 (1986): 27. http://dx.doi.org/10.2307/3576722.

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50

Mirzadeh, Saed, and Richard M. Lambrecht. "Process for producing astatine-211 for radiopharmaceutical use." Environment International 14, no. 1 (1988): II. http://dx.doi.org/10.1016/0160-4120(88)90389-3.

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