Health risk appraisal by ventilatory capacity.
D000328:Adult; D000375:Aging / Q000502:physiology; D001827:Body Height; D003430:Cross-Sectional Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D009790:Occupations; D011009:Pneumoconiosis / Q000453:epidemiology / Q000208:ethnology / Q000503:physiopathology*; D012129:Respiratory Function Tests; D012846:Singapore