Johns Hopkins Pediatric Specialty Clinic, Baltimore, Maryland, United States
Northwestern University Feinberg School of Medicine - Ann & Robert H. Lurie Children's Hospital of Chicago - Neonatology, Chicago, Illinois, United States
Great Ormond Street, London, United Kingdom
Department I for Internal Medicine University Hospital of Cologne, Cologne, NRW, Germany
University hospital of Cologne, Department of Neonatology, Cologne, Northrhine-westfalia, Germany
CF Study Center, University Hospital Cologne, Cologne, Germany
Cedars-Sinai Medical Center, Los Angeles, Los Angeles, California, United States
Goethe-Universität - University Hospital Frankfurt, Frankfurt, Germany
Civils Hospices of Lyon, Lyon, France
Department II of Internal Medicine, University Hospital of Cologne, Cologne, Germany
University Hospital of Cologne, Cologne, Germany
U.O.C. Clinica Medica 1, Padova, Padua, Italy
E.P.S. Fattouma Bourguiba Hospital, Monastir,, Tunisia
University of Cologne, Cologne, Germany
Study Center Palliative Medicine, Cologne, NRW, Germany
University Hospital Göttingen Center of Palliative Medicine, Göttingen, Hessen, Germany
Hospital Essen- Mitte, Departement of Palliative Medicine, Essen, NRW, Germany
University Medical Center Hamburg-Eppendorf, Hamburg, Germany
University Hospital Düsseldorf, Düsseldorf, Germany
University Hospital Frankfurt, Frankfurt am Main, Germany