1. Infectious Diseases Department, Hospital Clínic de Barcelona, Barcelona, Spain
2. Infectious Diseases Department, Policlinico P. Giaccone, Palermo, Italy
3. Radiology Department, Hospital Clínic de Barcelona, Barcelona, Spain
4. Pathology Department, Hospital Clínic de Barcelona, Barcelona, Spain
5. AIDS Research Group, Hospital Clínic-Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), University of Barcelona, Barcelona, Spain