The weed.
D000328:Adult; D000818:Animals; D002248:Carbon Monoxide / Q000009:adverse effects; D002273:Carcinogens; D002648:Child; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007509:Irritants / Q000009:adverse effects; D009538:Nicotine / Q000494:pharmacology; D010551:Personality; D010947:Plants, Toxic; D011247:Pregnancy; D012906:Smoke / Q000032:analysis; D012907:Smoking; D000074606:Smoking Prevention; D014026:Nicotiana
D002273:Carcinogens; D007509:Irritants; D012906:Smoke; D009538:Nicotine; D002248:Carbon Monoxide