Mail survey response by health status of smokers, nonsmokers, and ex-smokers.
D000328:Adult; D002140:California; D004185:Disability Evaluation; D005006:Ethnicity; D005260:Female; D006262:Health; D006306:Health Surveys; D006801:Humans; D008297:Male; D008875:Middle Aged; D011336:Probability; D012494:Sampling Studies; D012737:Sex Factors; D012907:Smoking; D011795:Surveys and Questionnaires; D013997:Time Factors