From the Health Care Financing Administration and the US Public Health Service.
Lee
P R
PR
Health Care Financing Administration.
Vladeck
B C
BC
D014487:Centers for Medicare and Medicaid Services, U.S.; D002648:Child; D002675:Child, Preschool; D003140:Communicable Disease Control; D006801:Humans; D017589:Immunization Programs; D007223:Infant; D014481:United States; D014492:United States Public Health Service; D014611:Vaccination