title: Utilization patterns of psychiatric emergency services by elderly patients.
authors.forename: Benjamin Kai Pan
authors.initials: BK
authors.lastname: Woo
mesh_terms: D000368:Aged; D004637:Emergency Services, Psychiatric / Q000706:statistics & numerical data*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies