TY - GEN AU - Calne,D B TI - Is "Parkinson's disease" one disease? SN - 0022-3050 PY - 1989///0831 KW - Alzheimer Disease KW - etiology KW - Brain KW - pathology KW - Humans KW - Parkinson Disease KW - Syndrome N1 - Publication Type: Journal Article; Review UR - https://doi.org/10.1136/jnnp.52.suppl.18 ER -