1 Department of Medicine, Internal Medicine, Lausanne University Hospital (CHUV), Lausanne, Switzerland.
2 Service of Dermatology, Lausanne University Hospital, Lausanne, Switzerland.
3 Institute of Pathology, Lausanne University Hospital, Lausanne, Switzerland; Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland.
4 Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland; Service of Gastroenterology and Hepatology, Lausanne University Hospital, Lausanne, Switzerland.
5 Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland; Service of Immunology and Allergy, Lausanne University Hospital, Lausanne, Switzerland. Electronic address: [email protected].