Emphysema and smoking: additional data.
D000367:Age Factors; D000368:Aged; D004812:Epidemiologic Methods; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011656:Pulmonary Emphysema / Q000453:epidemiology*; D012737:Sex Factors; D012907:Smoking / Q000453:epidemiology*