Nosology and classification of genetic skeletal disorders: 2015 revision - Bonafe, L; Cormier-Daire, V; Hall, C; Lachman, R; Mortier, G; Mundlos, S; Nishimura, G; Sangiorgi, L; Savarirayan, R; Sillence, D; Spranger, J; Superti-Furga, A; Warman, M; Unger, S (Am J Med Genet A, 2015)