©Zainab Samaan, Karleen M Schulze, Catherine Middleton, Jane Irvine, Phillip Joseph, Andrew Mente, Baiju R Shah, Guillaume Pare, Dipika Desai, Sonia S Anand, SAHARA Investigators. Originally published in JMIR Research Protocols (http://www.researchprotocols.org), 20.08.2013.
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 JMIR Research Protocols, is properly cited. The complete bibliographic information, a link to the original publication on http://www.researchprotocols.org, as well as this copyright and license information must be included.