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Artykuły w czasopismach na temat "Photoplethysmography"

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Dorsey, J. Stonewall. "PHOTOPLETHYSMOGRAPHY." Plastic and Reconstructive Surgery 76, no. 5 (1985): 800. http://dx.doi.org/10.1097/00006534-198511000-00038.

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Alian, Aymen A., and Kirk H. Shelley. "Photoplethysmography." Best Practice & Research Clinical Anaesthesiology 28, no. 4 (2014): 395–406. http://dx.doi.org/10.1016/j.bpa.2014.08.006.

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Lindberg, L. G., T. Tamura, and P. Å. Öberg. "Photoplethysmography." Medical & Biological Engineering & Computing 29, no. 1 (1991): 40–47. http://dx.doi.org/10.1007/bf02446294.

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Lindberg, L. G., and P. Å. Öberg. "Photoplethysmography." Medical & Biological Engineering & Computing 29, no. 1 (1991): 48–54. http://dx.doi.org/10.1007/bf02446295.

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Svistushkin, V. M., K. V. Eremeeva, X. Yang, et al. "Development of an experimental rabbit model of rhinitis medicamentosa." Russian Bulletin of Otorhinolaryngology 90, no. 3 (2025): 46. https://doi.org/10.17116/otorino20259003146.

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Background. Rhinitis medicamentosa (RM), resulting from prolonged use of nasal decongestants, represents a significant clinical problem. The pathogenetic mechanisms of RM remain insufficiently studied, and existing methods for assessing the state of the nasal mucosa require improvement. The development of an experimental model of RM is necessary for testing new therapeutic approaches. Objective. To develop an experimental model of RM in rabbits, evaluate morphological changes in the nasal mucosa, and test the photoplethysmography method for non-invasive diagnosis of microcirculatory disorders.
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Herrmann, Hans, and Hartmut Ewald. "Techniques of Recording Photoplethysmographic Signals." Current Directions in Biomedical Engineering 7, no. 2 (2021): 143–46. http://dx.doi.org/10.1515/cdbme-2021-2037.

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Abstract The photoplethysmography optically measures blood volume changes within micro vascular tissue. Furthermore, photoplethysmographic signals are used within pulse oximeters in order to calculate the oxygen saturation of the blood. This standard measurement technique is performed as a non-invasive spot check method for human health conditions in hospitals or other health care facilities. Usually at least two light sources are used alternating in order to measure photoplethysmograms at different wavelengths. In this paper we will investigate different methods of optically recording photopl
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Peng, Rong-Chao, Wen-Rong Yan, Ning-Ling Zhang, Wan-Hua Lin, Xiao-Lin Zhou, and Yuan-Ting Zhang. "Investigation of Five Algorithms for Selection of the Optimal Region of Interest in Smartphone Photoplethysmography." Journal of Sensors 2016 (2016): 1–7. http://dx.doi.org/10.1155/2016/6830152.

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Smartphone photoplethysmography is a newly developed technique that can detect several physiological parameters from the photoplethysmographic signal obtained by the built-in camera of a smartphone. It is simple, low-cost, and easy-to-use, with a great potential to be used in remote medicine and home healthcare service. However, the determination of the optimal region of interest (ROI), which is an important issue for extracting photoplethysmographic signals from the camera video, has not been well studied. We herein proposed five algorithms for ROI selection: variance (VAR), spectral energy r
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Cheshmedzhiev, Krasimir. "Analysis of Photopletismographic Signals at Different Sampling Rate." Innovative STEM Education 4, no. 1 (2022): 56–61. http://dx.doi.org/10.55630/stem.2022.0408.

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Photoplethysmography is a convenient and easy to use method for obtaining information about the human cardiovascular system. It is based on the use of the property of tissues to absorb light passing through or reflected from them. The received analog signal when using this method is converted into digital for further processing. The article presents an experimental system for recording photoplethysmographic signals. The data obtained during the digitization of the analog signal with different sampling rates are shown.
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KORHONEN, I., and A. YLI-HANKALA. "Photoplethysmography and nociception." Acta Anaesthesiologica Scandinavica 53, no. 8 (2009): 975–85. http://dx.doi.org/10.1111/j.1399-6576.2009.02026.x.

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Gailite, L., J. Spigulis, and A. Lihachev. "Multilaser photoplethysmography technique." Lasers in Medical Science 23, no. 2 (2007): 189–93. http://dx.doi.org/10.1007/s10103-007-0471-9.

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Rozprawy doktorskie na temat "Photoplethysmography"

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Hayes, Matthew J. "Artefact reduction in photoplethysmography." Thesis, Loughborough University, 1998. https://dspace.lboro.ac.uk/2134/7094.

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The use of optical techniques in biomedical monitoring and diagnosis is becoming increasingly widespread, primarily because of the non-invasive nature of optically derived measurements. Physiological analysis is usually achieved by characterisation of the spectral or temporal properties of the interaction between light and the anatomy. Although some optical measurements require complex instrumentation and protocols, recent technological advances have resulted in robust and compact equipment that is now used routinely in a multitude of clinical contexts. Unfortunately, these measurements are in
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Shi, Ping. "Photoplethysmography in noninvasive cardiovascular assessment." Thesis, Loughborough University, 2009. https://dspace.lboro.ac.uk/2134/5399.

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The electro-optic technique of measuring the cardiovascular pulse wave known as photoplethysmography (PPG) is clinically utilised for noninvasive characterisation of physiological components by dynamic monitoring of tissue optical absorption. There has been a resurgence of interest in this technique in recent years, driven by the demand for a low cost, compact, simple and portable technology for primary care and community-based clinical settings, and the advancement of computer-based pulse wave analysis techniques. PPG signal provides a means of determining cardiovascular properties during the
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Cheang, Peck-Yeng (Sharon). "Feasibility of non-contact photoplethysmography." Thesis, Loughborough University, 2008. https://dspace.lboro.ac.uk/2134/34255.

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This thesis explores and investigates the feasibility of a non-contact photoplethysmography system operating in both transmission and reflection modes. Several issues are addressed in the implementation of the non-contact system, including the dynamic range of PPG signals, ambient artefacts and effects of direct coupling, which is light that is detected without any interaction with the measured tissue area. Plethysmography has been used in a range of biomedical applications to study blood volume changes. All current applications employ contact probes, where the transducers are positioned direc
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Zheng, Jia. "Opto-Physiological Modelling of Imaging Photoplethysmography." Thesis, Loughborough University, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.519660.

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Sun, Yu. "Imaging photoplethysmography : towards effective physiological measurements." Thesis, Loughborough University, 2011. https://dspace.lboro.ac.uk/2134/9143.

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Since its conception decades ago, Photoplethysmography (PPG) the non-invasive opto-electronic technique that measures arterial pulsations in-vivo has proven its worth by achieving and maintaining its rank as a compulsory standard of patient monitoring. However successful, conventional contact monitoring mode is not suitable in certain clinical and biomedical situations, e.g., in the case of skin damage, or when unconstrained movement is required. With the advance of computer and photonics technologies, there has been a resurgence of interest in PPG and one potential route to overcome the above
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Crabtree, Vincent P. "Non-invasive vascular assessment using photoplethysmography." Thesis, Loughborough University, 2003. https://dspace.lboro.ac.uk/2134/7752.

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Photoplethysmography (PPG) has become widely accepted as a valuable clinical tool for performing non-invasive biomedical monitoring. The dominant clinical application of PPG has been pulse oximetry, which uses spectral analysis of the peripheral blood supply to establish haemoglobin saturation. PPG has also found success in screening for venous dysfunction, though to a limited degree. Arterial Disease (AD) is a condition where blood flow in the arteries of the body is reduced,a condition known as ischaernia. Ischaernia can result in pain in the affected areas, such as chest pain for an ischear
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John, Gareth W. "Measurement of venous blood flow using photoplethysmography." Thesis, Cardiff University, 2005. http://orca.cf.ac.uk/54076/.

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This simple, non-invasive test will reduce the patient numbers requiring the more time-consuming ultrasound examination, by screening out a high proportion of individuals who definitely do not have lower limb DVT. However, further signal processing methods should be investigated to improve the specificity of the test.
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MacConachie, Middleton Paul. "Physiological and clinical implications of photoplethysmography waveforms." Thesis, Imperial College London, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.525237.

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Trumpp, Alexander, Johannes Lohr, Daniel Wedekind, et al. "Camera-based photoplethysmography in an intraoperative setting." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2018. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-234950.

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Background Camera-based photoplethysmography (cbPPG) is a measurement technique which enables remote vital sign monitoring by using cameras. To obtain valid plethysmograms, proper regions of interest (ROIs) have to be selected in the video data. Most automated selection methods rely on specific spatial or temporal features limiting a broader application. In this work, we present a new method which overcomes those drawbacks and, therefore, allows cbPPG to be applied in an intraoperative environment. Methods We recorded 41 patients during surgery using an RGB and a near-infrared (NIR) camera. A
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Butler, Matthew J. "Motion artefact reduction for reflection-mode photoplethysmography." Thesis, University of Nottingham, 2018. http://eprints.nottingham.ac.uk/52390/.

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Photoplethysmography (PPG) is a technique that uses light to measure the local changes in blood-volume in subjects (predominantly humans). Multiple useful statistics can be gained from such a measurement; heart-rate and it's variability, blood-oxygen saturation and even an estimation of blood pressure, to name but a few. Compared to other measurement techniques, photoplethysmography is favourable as it is both non-invasive, since nothing physical penetrates the subjects skin, and safe, as the subject is galvanically isolated from the test equipment (additional benefits also exist). Motion arte
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Książki na temat "Photoplethysmography"

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Blažek, Vladimír. Quantitative photoplethysmography: Basic facts and examination tests for evaluating peripheral vascular funktions [sic]. VDI-Verlag, 1996.

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Griffiths, M. P. Design of a photoplethysmograph for measuring skin blood flow in children with burn-injuries. University of Salford, 1992.

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Photoplethysmography. Elsevier, 2022. http://dx.doi.org/10.1016/c2020-0-00098-8.

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Hayes, Matthew James. Artefact reduction in photoplethysmography. 1998.

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Chow, Chee Theng, and Hui Tyen Low. Enhanced Biometric Identification Using Photoplethysmography Signals. Cambridge Scholars Publishing, 2024.

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John, Allen, and Panicos A. Kyriacou. Photoplethysmography: Technology, Signal Analysis and Applications. Elsevier Science & Technology Books, 2021.

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Photoplethysmography: Technology, Signal Analysis and Applications. Elsevier Science & Technology, 2021.

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Leonhardt, Steffen, Vladimír Blazek, Jagadeesh Kumar V, and Mandavilli Mukunda Rao. Studies in Skin Perfusion Dynamics: Photoplethysmography and Its Applications in Medical Diagnostics. Springer Singapore Pte. Limited, 2021.

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Weng, Jianling. A study of pulse waveform analysis of the photoplethysmographic data from pulse oximeters. 2002.

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Al-Ja'Freh, Mahd A. A reflection photoplethysmographic study on the effects of methyl nicotinate on cutaneous blood vessels. 1986.

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Części książek na temat "Photoplethysmography"

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Agache, Pierre. "Photoplethysmography." In Measuring the skin. Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-662-08585-1_34.

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Pinheiro, Nuno, Ricardo Couceiro, Jens Muehlsteff, Christian Eickholt, Jorge Henriques, and Paulo Carvalho. "Syncope Prediction using Photoplethysmography." In EMBEC & NBC 2017. Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-5122-7_157.

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Fronek, A., and W. P. Bundens. "Calibrated Photoplethysmography (C-PPG)." In Phlebology ’95. Springer London, 1995. http://dx.doi.org/10.1007/978-1-4471-3095-6_124.

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Lempe, Georg, Sebastian Zaunseder, Tom Wirthgen, Stephan Zipser, and Hagen Malberg. "ROI Selection for Remote Photoplethysmography." In Bildverarbeitung für die Medizin 2013. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-36480-8_19.

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Rubins, U., V. Upmalis, O. Rubenis, D. Jakovels, and J. Spigulis. "Real-Time Photoplethysmography Imaging System." In IFMBE Proceedings. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-21683-1_46.

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He, Lin, Kazi Shafiul Alam, Jiachen Ma, Richard Povinelli, and Sheikh Iqbal Ahamed. "Dynamics Reconstruction of Remote Photoplethysmography." In Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-99194-4_8.

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Sannino, Giovanna, Ivanoe De Falco, and Giuseppe De Pietro. "On Evaluating Blood Pressure Through Photoplethysmography." In Internet of Things. IoT Infrastructures. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-47063-4_57.

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Ishibashi, H., T. Ohta, H. Kazui, R. Kato, and T. Tsuchioka. "New Leg Position for Venous Photoplethysmography." In Phlebology ’95. Springer London, 1995. http://dx.doi.org/10.1007/978-1-4471-3095-6_125.

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Li, Dazhou, Hai Zhao, Sinan Li, and Huanxia Zheng. "A New Representation of Photoplethysmography Signal." In Wireless Algorithms, Systems, and Applications. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-07782-6_26.

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Alian, Aymen A., and Kirk H. Shelley. "Photoplethysmography: Analysis of the Pulse Oximeter Waveform." In Monitoring Technologies in Acute Care Environments. Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-8557-5_19.

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Streszczenia konferencji na temat "Photoplethysmography"

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Gomez-Gonzalez, N., S. Dominguez-Hernandez, Becerra-Martinez Liliana, M. Servin, and G. Paez. "High-precision Imaging Photoplethysmography-remote." In Bio-Optics: Design and Application. Optica Publishing Group, 2025. https://doi.org/10.1364/boda.2025.jm4a.3.

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Imaging photoplethysmography (iPPG) allows noninvasive, noncontact monitoring of heart rate, cardiac variability, and diastole-systole ratio, overcoming the limitations of the traditional method for clinical and portable applications.
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Lombardi, Sara, Piergiorgio Francia, and Leonardo Bocchi. "Exploring Gender-Related Variations in Photoplethysmography." In 2024 46th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC). IEEE, 2024. https://doi.org/10.1109/embc53108.2024.10782441.

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Sardar, Priya, Rajarshi Gupta, and Jayanta K. Chandra. "Detection of Diabetes using Short-duration Photoplethysmography." In 2024 IEEE Calcutta Conference (CALCON). IEEE, 2024. https://doi.org/10.1109/calcon63337.2024.10914214.

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Rhee, Sokwoo, Boo-Ho Yang, and Haruhiko H. Asada. "Theoretical Evaluation of the Influence of Displacement on Finger Photoplethysmography for Wearable Health Monitoring Sensors." In ASME 1999 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/imece1999-0079.

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Abstract This paper describes the development of an opto-physiological model of a finger in conjunction with a ring-type photoplethysmography device (the Ring Sensor). This model is a combination of an optical model, a mechanical model, a skin capillary model and the arterial wall dynamics. It describes the photoplethysmographic effects due to the relative displacement and rotation of a finger to a ring-type opto-electric device that monitors the arterial pulsation noninvasively and continuously. Numerical simulations and experiments were conducted to verify and evaluate this model. This model
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Lozano Uribe, A. D. "Novel photoplethysmography system." In MEDICAL PHYSICS: Fifth Mexican Symposium. AIP, 2001. http://dx.doi.org/10.1063/1.1420484.

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Zheng, Jia, Sijung Hu, Vassilios Chouliaras, and Ron Summers. "Feasibility of Imaging Photoplethysmography." In 2008 International Conference on Biomedical Engineering And Informatics (BMEI). IEEE, 2008. http://dx.doi.org/10.1109/bmei.2008.365.

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Timimi, Ammar Y. K., and M. A. Mohd Ali. "Sensor factors influencing photoplethysmography." In 2014 IEEE Asia Pacific Conference on Circuits and Systems (APCCAS). IEEE, 2014. http://dx.doi.org/10.1109/apccas.2014.7032808.

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Spigulis, Janis, Renars Erts, Vladimirs Nikiforovs, and Edgars Kviesis-Kipge. "Wearable wireless photoplethysmography sensors." In Photonics Europe, edited by Jürgen Popp, Wolfgang Drexler, Valery V. Tuchin, and Dennis L. Matthews. SPIE, 2008. http://dx.doi.org/10.1117/12.801966.

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Asare, L., E. Kviesis-Kipge, A. Grabovskis, U. Rubins, J. Spigulis, and R. Erts. "Multi-spectral photoplethysmography biosensor." In SPIE Optics + Optoelectronics, edited by Francesco Baldini, Jiri Homola, Robert A. Lieberman, and Kyriacos Kalli. SPIE, 2011. http://dx.doi.org/10.1117/12.887176.

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Gaurav, G., S. Mohanasankar, and V. Jagadeesh Kumar. "Apnea sensing using photoplethysmography." In 2013 Seventh International Conference on Sensing Technology (ICST). IEEE, 2013. http://dx.doi.org/10.1109/icsenst.2013.6727660.

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Raporty organizacyjne na temat "Photoplethysmography"

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Swiston, Albert J., and Milan Raj. FY12 Line-Supported Bio-Medical Initiative Program: Advanced Photoplethysmography (PPG) Sensors for Operational and Casualty Care Medicine. Defense Technical Information Center, 2013. http://dx.doi.org/10.21236/ada580581.

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