Towards identifying the susceptible smoker.
D000328:Adult; D000367:Age Factors; D001944:Breath Tests; D004198:Disease Susceptibility; D005260:Female; D005541:Forced Expiratory Volume; D006801:Humans; D008171:Lung Diseases / Q000175:diagnosis / Q000209:etiology; D008297:Male; D012737:Sex Factors; D012907:Smoking