1. Internal Medicine Service University Hospital Infanta Leonor Madrid Spain
2. Harm Reduction Unit ‘SMASD’ Addictions and Mental Health Department Madrid Spain
3. Barcelona Institute for Global Health (ISGlobal) Hospital Clínic University of Barcelona Barcelona Spain
4. Faculty of Medicine University of Barcelona Barcelona Spain
5. Viral Infection and Immunity Unit National Centre for Microbiology Health Institute Carlos III Madrid Spain
6. School of Medicine Complutense University of Madrid Madrid Spain
7. Gregorio Marañón Health Research Institute Madrid Spain