. 2014 Nov 6;3(4):e59. doi: 10.2196/resprot.3695
©Inge Renske van Bruinessen, Evelyn M van Weel-Baumgarten, Harm Wouter Snippe, Hans Gouw, Josée M Zijlstra, Sandra van Dulmen. Originally published in JMIR Research Protocols (http://www.researchprotocols.org), 06.11.2014.
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Figure 1.
Stepwise protocol.