Authors: Manuel V Villaran; Angela Bayer; Kelika A Konda; Carlos Mendoza; Hilda Quijandria; Julia S Ampuero; Moises Apolaya; Oswaldo Palacios; Andres G Lescano; Antonio M Vega; David L Blazes; Tadeusz Kochel; Silvia M Montano Journal: Am J Mens Health Date: 2012-03-07