Korcok, M. (1998). Controlling health care costs a costly business for HMOs in US.
Παραπομπή Chicago StyleKorcok, M. Controlling Health Care Costs a Costly Business for HMOs in US. 1998.
Παραπομπή MLAKorcok, M. Controlling Health Care Costs a Costly Business for HMOs in US. 1998.
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