. 2019 Mar 27;8(3):e10970. doi: 10.2196/10970
©Daniel P Fitze, Martino Franchi, Werner L Popp, Severin Ruoss, Silvio Catuogno, Karin Camenisch, Debora Lehmann, Christian M Schmied, David Niederseer, Walter O Frey, Martin Flück. Originally published in JMIR Research Protocols (http://www.researchprotocols.org), 27.03.2019.
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