Cigarette smoking, Parkinson's disease and ulcerative colitis.
D000328:Adult; D000368:Aged; D003093:Colitis, Ulcerative / Q000517:prevention & control*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010300:Parkinson Disease / Q000517:prevention & control*; D012306:Risk; D012907:Smoking