Adult-Onset Nemaline Myopathy:Another Cause of Dropped Head
Muscle & Nerve 22:1146-1150, Lomen-Hoerth,C.,et al, 1999
Epidemiology of Motor-Neuron Diseases
NEJM 288:1047, Bobwick,A.R.,et al, 1973
The Geography of Neurology
BMJ 2:506, Spillane,J.D., 1972