©Franziska Alexandra Meister, Zoltan Czigany, Jan Bednarsch, Jörg Böcker, Iakovos Amygdalos, Daniel Antonio Morales Santana, Katharina Rietzler, Marcus Moeller, René Tolba, Peter Boor, Wilko Rohlfs, Ulf Peter Neumann, Georg Lurje. Originally published in JMIR Research Protocols (http://www.researchprotocols.org), 14.10.2019.
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