title: An ex-intravenous drug addict with confusion and apathy.
authors: Koon H
authors: KH
authors: Chan
authors: Raymond T F
authors: RT
authors: Cheung
authors: Gardian C Y
authors: GC
authors: Fong
authors: Shu L
authors: SL
authors: Ho
mesh_terms: D000328:Adult; D000342:Affective Symptoms / Q000209:etiology*; D003221:Confusion / Q000209:etiology*; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods; D008297:Male; D015819:Substance Abuse, Intravenous / Q000150:complications; D014899:Wernicke Encephalopathy / Q000150:complications* / Q000175:diagnosis