Rice, D. P. (1977). The National Center for Health Statistics and the data needed for national health insurance.
Παραπομπή Chicago StyleRice, D. P. The National Center for Health Statistics and the Data Needed for National Health Insurance. 1977.
Παραπομπή MLARice, D. P. The National Center for Health Statistics and the Data Needed for National Health Insurance. 1977.
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