. 2012 Sep 26;1(2):e7. doi: 10.2196/ijmr.2101
©Merel M Tielemans, Jan BMJ Jansen, Martijn GH van Oijen. Originally published in the Interactive Journal of Medical Research (http://www.i-jmr.org/), 26.09.2012.
This is an open-access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in the Interactive Journal of Medical Research, is properly cited. The complete bibliographic information, a link to the original publication on http://www.i-jmr.org/, as well as this copyright and license information must be included.