. 2010 Dec 6;1:10.3402/ejpt.v1i0.5516. doi: 10.3402/ejpt.v1i0.5516
© 2010 Nicola Townsend Fear et al.
This is an Open Access article distributed under the terms of the Creative Commons Attribution-Noncommercial 3.0 Unported License, permitting all non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Fig. 1.
Postcard used to aid recruitment.