title: Smoking--now and then.
mesh_terms: D000293:Adolescent; D000328:Adult; D002170:Canada; D005060:Europe; D005260:Female; D049669:History, 16th Century; D049670:History, 17th Century; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D008297:Male; D008875:Middle Aged; D012907:Smoking / Q000266:history*; D000074606:Smoking Prevention