title: An accurate tool for measuring ED saturation levels in an urban EMS system: Phoenix's year-long experience.
authors.affiliation: Desert Samaritan Medical Center, Emergency Department, Mesa, Ariz, USA. eric.heckerson@bannerhealth.com
authors.forename: Eric W
authors.initials: EW
authors.lastname: Heckerson
mesh_terms: D001130:Arizona; D004632:Emergency Medical Services; D004636:Emergency Service, Hospital / Q000706:statistics & numerical data*; D006786:Hospitals, Urban; D006801:Humans; D011795:Surveys and Questionnaires