1. Department of Urology, University of Miami Miller School of Medicine, Miami, FL, USA
2. Training and Clinical Research Center, Specialty Hospital, Mexican Social Security Institute, National Medical Center XXI, Mexico City, Mexico
3. Teaching Headquarters, ABC Medical Center, Mexico City, Mexico
4. Faculty of Medicine, Autonomous University of the State of Mexico, Toluca, State of Mexico, Mexico
5. Center for Research in Policies, Population and Health, National Autonomous University of Mexico, Mexico City, Mexico