Age related changes in lung functions in Indian service men.
D000328:Adult; D000368:Aged; D000375:Aging; D003430:Cross-Sectional Studies; D005105:Expiratory Reserve Volume; D005541:Forced Expiratory Volume; D006801:Humans; D007194:India; D007320:Inspiratory Capacity; D008297:Male; D008875:Middle Aged; D008889:Military Personnel; D012119:Respiration; D014797:Vital Capacity