Rare functional genetic variants in COL7A1, COL6A5, COL1A2 and COL5A2 frequently occur in Chiari Malformation Type 1. oleh Aintzane Urbizu, Melanie E Garrett, Karen Soldano, Oliver Drechsel, Dorothy Loth, Anna Marcé-Grau, Olga Mestres I Soler, Maria A Poca, Stephan Ossowski, Alfons Macaya, Francis Loth, Rick Labuda, Allison Ashley-Koch