1. IrsiCaixa AIDS Research Institute, Badalona, Spain
2. Germans Trias i Pujol Research Institute (IGTP), Badalona, Spain and Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
3. Lluita contra la SIDA Foundation, Hospital Universitari Germans Trias i Pujol, Badalona, Spain
4. Infectious Diseases Department, Hospital Universitari Germans Trias i Pujol, Badalona, Spain
5. Faculty of Medicine, University of Vic - Central University of Catalonia (UVic-UCC), Vic, Spain