1. Evandro Chagas National Institute of Infectious Disease (INI)—Oswaldo Cruz Foundation (FIOCRUZ)Laboratory of clinical research on STD/AIDS Manguinhos Rio de Janeiro Brazil
2. University Clinic for Visceral Surgery and MedicineUniversity of BernInselspital Bern Switzerland
3. HepatologyDepartment of Clinical ResearchUniversity of Bern Bern Switzerland