Technology. Fanny packs track.
D001900:Boston; D034201:Computers, Handheld; D004636:Emergency Service, Hospital / Q000706:statistics & numerical data*; D006747:Hospital Communication Systems; D006801:Humans; D007297:Inpatients; D013686:Telemetry / Q000295:instrumentation*; D013997:Time Factors; D014465:Ultrasonics