Recruitment of men to a multi-centre diabetes prevention trial: an evaluation of traditional and online promotional strategies oleh Karen Bracken, Wendy Hague, Anthony Keech, Ann Conway, David J. Handelsman, Mathis Grossmann, David Jesudason, Bronwyn Stuckey, Bu B. Yeap, Warrick Inder, Carolyn Allan, Robert McLachlan, Kristy P. Robledo, Gary Wittert