. 2017 Mar 2;6(3):e33. doi: 10.2196/resprot.6314
©Dominik Ose, Aline Kunz, Sabrina Pohlmann, Helene Hofmann, Markus Qreini, Johannes Krisam, Lorenz Uhlmann, Christian Jacke, Eva C Winkler, Hans-Joachim Salize, Joachim Szecsenyi. Originally published in JMIR Research Protocols (http://www.researchprotocols.org), 02.03.2017.
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