title: Authors' reply.
authors.forename: Jong-Ling
authors.initials: JL
authors.lastname: Fuh
authors.forename: Chih-Wen
authors.initials: CW
authors.lastname: Yang
mesh_terms: D000758:Anesthesia / Q000009:adverse effects*; D003704:Dementia / Q000453:epidemiology*; D005260:Female; D006801:Humans; D008297:Male; D013514:Surgical Procedures, Operative / Q000009:adverse effects*