. 2015 Jan 9;4(1):e6. doi: 10.2196/resprot.3407
©Jozette JC Stienen, Petronella B Ottevanger, Lianne Wennekes, Helena M Dekker, Richard WM van der Maazen, Caroline MPW Mandigers, Johan HJM van Krieken, Nicole MA Blijlevens, Rosella PMG Hermens. Originally published in JMIR Research Protocols (http://www.researchprotocols.org), 09.01.2015.
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