title: Drug overdoses--a three year study at Altnagelvin Hospital, Londonderry.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009660:Northern Ireland; D011041:Poisoning / Q000453:epidemiology* / Q000628:therapy; D011247:Pregnancy; D012189:Retrospective Studies; D013406:Suicide, Attempted / Q000453:epidemiology*