Gov. Wilson vetoes California legislation for coded identifiers.
D002140:California / Q000453:epidemiology; D003219:Confidentiality; D018563:Disease Notification / Q000331:legislation & jurisprudence*; D015658:HIV Infections / Q000175:diagnosis / Q000453:epidemiology*; D006801:Humans; D010355:Patient Identification Systems; D011159:Population Surveillance / Q000379:methods*