Clinical features in early Parkinson disease and survival.
Lo RY, Tanner CM, Albers KB, Leimpeter AD, Fross RD, Bernstein AL, McGuire V, Quesenberry CP, Nelson LM, Van Den Eeden SK.
Lo RY, et al. Among authors: bernstein al.
Arch Neurol. 2009 Nov;66(11):1353-8. doi: 10.1001/archneurol.2009.221.
Arch Neurol. 2009.
PMID: 19901166