Smoking in a local community in Singapore.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012846:Singapore; D012907:Smoking / Q000453:epidemiology*; D000074606:Smoking Prevention; D013997:Time Factors