title: Pupillometry to guide postoperative analgesia.
authors.forename: Merlin D
authors.initials: MD
authors.lastname: Larson
authors.forename: Daniel I
authors.initials: DI
authors.lastname: Sessler
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D010147:Pain Measurement / Q000379:methods*; D010149:Postoperative Pain / Q000175:diagnosis* / Q000188:drug therapy*; D012025:Reflex, Pupillary / Q000187:drug effects*