Camptocormia
Neurol 65:355-359, Azher,S.N. &Jankovic,J., 2005
Bent Spine Syndrome
JNNP 60:51-54, Serratrice,G.,et al, 1996
A 64-year-old Man with Progressive Paraspinal Muscle Weakness
Neurol 86:e4-e9, Schneider, R.,et al, 2016
Parkinson's Disease
In Handbk of Clinical Neurology, Vinken, P. J. & Bruyn, G. W. , Ed, North-Holland Publ Co, Amsterdam, 6:173, 1968. Selby, G., 1968