Fibrodysplasia Ossificans Progressiva, The Clinical Features & Natural Hx of 34 Pts
J Bone Joint Surg 64B:76-83, Connor,J.M.&Evans,D.A.P., 1982
Girls with Fragile X Syndrome:Physical and Neurocognitive Status and Outcome
Pediatrics 89:395-400, Hagerman,R.J.,et al, 1992