. 2010 Dec 17;12(4):e67. doi: 10.2196/jmir.1576
©Donna L Berry, Barbara Halpenny, Seth Wolpin, B Joyce Davison, William J Ellis, William B Lober, Justin McReynolds, Jennifer Wulff. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 17.12.2010
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