. 2019 Jan 8;8(1):e11911. doi: 10.2196/11911
©Christian Kromer, Viktoria P Nühnen, Wolfgang Pfützner, Sebastian Pfeiffer, Hans-Joachim Laubach, Wolf-Henning Boehncke, Joerg Liebmann, Matthias Born, Michael P Schön, Timo Buhl. Originally published in JMIR Research Protocols (http://www.researchprotocols.org), 08.01.2019.
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