1. Department of Urology; Hospital Universitario Fundación Santa Fe de Bogotá and Universidad de los Andes School of Medicine; Bogotá D.C. Colombia
2. Department of Urology; Hospital Universitario Fundación Santa Fe de Bogotá; Bogotá D.C. Colombia
3. Department of Epidemiology and Biostatistics; Pontificia Universidad Javeriana; Bogotá D.C. Colombia
4. Department of Public Health and Health Economics; Hospital Universitario Fundación Santa Fe de Bogotá; Bogotá D.C. Colombia