1. Biological and Health Psychology Department, Universidad Autónoma de Madrid, Madrid, Spain
2. Apoyo Positivo, Psychological Department, Apoyo Positivo, Madrid, Spain
3. Psychiatry Service, Hospital Universitario La Paz, Madrid, Spain
4. Psychiatry Service, Hospital Universitario del Henares, Coslada, Spain
5. HIV Unit, Internal Medicine Service, Hospital Universitario La Paz, Madrid, Spain
6. INTRA-TP, Avenida Sada y Sus Contornos, Sada, Spain