Rigid Spine Syndrome and Rigid Spine Sign in Myopathies
J Child Neurol 4:273-282, Merlini,L.,et al, 1989
Emery-Dreifuss Muscular Dystrophy:Disease Spectrum and Differential Diagnosis
Neuropediatrics 19:62-71, Voit,T.,et al, 1988
Rigid Spine Syndrome:A Type I Fiber Myopathy
Arch Neurol 34:119, Seay,A.R.,et al, 1977