Authors: Johannes Häberle; Nathalie Boddaert; Alberto Burlina; Anupam Chakrapani; Marjorie Dixon; Martina Huemer; Daniela Karall; Diego Martinelli; Pablo Sanjurjo Crespo; René Santer; Aude Servais; Vassili Valayannopoulos; Martin Lindner; Vicente Rubio; Carlo Dionisi-Vici Journal: Orphanet J Rare Dis Date: 2012-05-29 Impact factor: 4.123