1. School of Sociomedical Sciences, Mailman School of Public Health, Columbia University, New York, New York, USA;
2. Mexican Association for Sex Education, Mexico City, Mexico;
3. Program in Human Sexuality, Department of Family Medicine and Community Health, University of Minnesota Medical School, Minneapolis, Minnesota, USA;
4. Adolescent Medicine, Division of Adolescent Medicine, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, Indiana, USA;
5. Sexual and Reproductive Health Matters, London, United Kingdom;
6. The Pleasure Project, London, United Kingdom;
7. Asociación Mexicana Para la Salud Sexual, A.C. Profesor de Posgrado, Departamento de Psiquiatría y Salud Mental, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico