©Emily Julia Arden-Close, Emily Smith, Katherine Bradbury, Leanne Morrison, Laura Dennison, Danius Michaelides, Lucy Yardley. Originally published in JMIR Human Factors (http://humanfactors.jmir.org), 19.05.2015.
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 Human Factors, is properly cited. The complete bibliographic information, a link to the original publication on http://humanfactors.jmir.org, as well as this copyright and license information must be included.