Sander J E, Layzer R B, Goldsobel A B
Ann Neurol. 1980 Aug;8(2):195-7. doi: 10.1002/ana.410080212.
A second large family with a dominantly inherited benign disorder resembling the stiff-man syndrome is reported. The infants are markedly hypertonic at birth, but their tone becomes almost normal by 3 years of age. Stiffness reappears at adolescence, often precipitated by sudden movement or cold, but remains mild when compared with the sporadic disorder.
