Authors: Glyn Elwyn; Annette M O'Connor; Carol Bennett; Robert G Newcombe; Mary Politi; Marie-Anne Durand; Elizabeth Drake; Natalie Joseph-Williams; Sara Khangura; Anton Saarimaki; Stephanie Sivell; Mareike Stiel; Steven J Bernstein; Nananda Col; Angela Coulter; Karen Eden; Martin Härter; Margaret Holmes Rovner; Nora Moumjid; Dawn Stacey; Richard Thomson; Tim Whelan; Trudy van der Weijden; Adrian Edwards Journal: PLoS One Date: 2009-03-04 Impact factor: 3.240