This license grants you unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work). This work was published in Trials 2015, 16:13 doi:10.1186/s13063-014-0531-y
Copyright (2015) the Author(s) ; licensee BioMed Central.
Journal of Foot and Ankle Research , 8 (article 4)