1. Internal Medicine Department Hospital Universitario Son Espases Palma de Mallorca Spain
2. Internal Medicine Service Hospital de Inca Inca Balearic Islands Spain
3. Preventive Medicine Service Hospital Universitario Son Espases Palma de Mallorca Spain
4. Department of Chemistry University of Balearic Islands Palma de Mallorca Spain
5. Virology Unit Clinical Microbiology Service Hospital Universitario Son Espases Palma de Mallorca Spain
6. Infectious Diseases Section Internal Medicine Department Infectious Diseases and HIV Group Hospital Universitario Son EspasesIDISBA Palma de Mallorca Spain