. 2016 Dec 21;5(4):e240. doi: 10.2196/resprot.5897
©Joachim Paul Hasebrook, Jürgen Hinkelmann, Thomas Volkert, Sibyll Rodde, Klaus Hahnenkamp. Originally published in JMIR Research Protocols (http://www.researchprotocols.org), 21.12.2016.
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