The relationship of respiratory function tests to respiratory symptoms and smoking in older people.
D000368:Aged; D000375:Aging; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012129:Respiratory Function Tests; D012140:Respiratory Tract Diseases / Q000209:etiology*; D012737:Sex Factors; D012907:Smoking; D013147:Spirometry; D014797:Vital Capacity