Authors: Werner Klingler; Sebastian Heiderich; Thierry Girard; Elvira Gravino; James Ja Heffron; Stephan Johannsen; Karin Jurkat-Rott; Henrik Rüffert; Frank Schuster; Marc Snoeck; Vincenzo Sorrentino; Vincenzo Tegazzin; Frank Lehmann-Horn Journal: Orphanet J Rare Dis Date: 2014-01-16 Impact factor: 4.123