1. Service of Internal Medicine, Department of Medicine, Lausanne University Hospital (CHUV), Lausanne, Switzerland
2. Unit of Paediatric Infectious Diseases and Vaccinology, Woman-Mother-Child Department, Lausanne University Hospital (CHUV), Lausanne, Switzerland
3. Service of Paediatric, Woman-Mother-Child Department, Lausanne University Hospital (CHUV), Lausanne, Switzerland
4. Paediatric Pulmonology Unit, Woman-Mother-Child Department, Lausanne University Hospital (CHUV), Lausanne, Switzerland