. 2013 Jul 11;2(2):e24. doi: 10.2196/resprot.2573
©Belinda Reininger, Laurel Person Mecca, Kendra M. Stine, Kevan Schultz, Luke Ling, David Halpern. Originally published in JMIR Research Protocols (http://www.researchprotocols.org), 11.07.2013.
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