©Paula M Frew, Saad B Omer, Kimberly Parker, Marcus Bolton, Jay Schamel, Eve Shapiro, Lauren Owens, Diane Saint-Victor, Sahithi Boggavarapu, Nikia Braxton, Matthew Archibald, Ameeta S Kalokhe, Takeia Horton, Christin M Root, Vincent L Fenimore, Aaron M Anderson. Originally published in JMIR Research Protocols (http://www.researchprotocols.org), 02.06.2015.
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.