. 2010 Mar 9;12(1):e7. doi: 10.2196/jmir.1215
© Regina Overberg, Wilma Otten, Andries de Man, Pieter Toussaint, Judith Westenbrink, Bertie Zwetsloot-Schonk. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 09.03.2010.
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Figure 5.
Flow of study participants