1. Adoption of patient tracking systems among hospital emergency rooms in California Publication: Oakland, Calif. : California HealthCare Foundation, [2008] Subject(s): Emergency Service, Hospital -- organization & administrationHospital Information Systems -- organization & administrationOrganizational InnovationPatient Identification Systems -- methodsEfficiency, OrganizationalEmergency Service, Hospital -- statistics & numerical dataHealth Care SurveysMedical Records Systems, ComputerizedHumansCalifornia