1. No appointment needed: the resurgence of urgent care centers in the United States Publication: Oakland, Calif. : California HealthCare Foundation, c2007 Subject(s): Ambulatory Care Facilities -- organization & administrationHealth Services Accessibility -- organization & administrationAmbulatory Care Facilities -- supply & distributionHealth Facilities, Proprietary -- organization & administrationHealth Services Accessibility -- trendsHealth Services Needs and Demand -- trendsManaged Care ProgramsPatient SatisfactionWorkers' CompensationHumansCaliforniaUnited States