University Hospital Zurich, Division of Endocrinology, Diabetes and Clinical Nutrition, Zurich, ZH, Switzerland
University Hospital Zurich, Division of Otorhinolaryngology, Zurich, ZH, Switzerland
University Hospital Zurich, Dept. of Dermatology, Zurich, ZH, Switzerland
University Hospital Zurich, Division of Internal Medicine, Zurich, ZH, Switzerland
Swiss Tropical and Public Health Institute, Basel, Basel Town, Switzerland
University of Bern, Inselspital, Division of Infectious Diseases and Travel Medicine, Bern, Switzerland
Cantonal Hospital St. Gallen, Division of Rheumatology, St. Gallen, Switzerland
University Hospital Zurich, Division of Cardiology, Zurich, ZH, Switzerland
University Hospital Zurich, Zurich, Switzerland
University Hospital Zurich, Zurich, Switzerland
Institute of General Practice, University of Zurich, Zurich, Switzerland