48-days in northern California.
Cochrane
J D
JD
D002140:California; D003695:Delivery of Health Care / Q000639:trends*; D004469:Economics, Hospital; D006273:Health Facility Merger; D006801:Humans; D008329:Managed Care Programs / Q000639:trends*; D011157:Population Dynamics; D012959:Socioeconomic Factors