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| Oklahoma State Department of Health Public health resources and information for residents and healthcare professionals in the state of Oklahoma. | |
| Oklahoma Public Employees Retirement System Established in 1964 to provide retirement and death benefits to state employees. | ||
| Department of Education Regulatory agency charged with maintenence and improvement of the educational system in Oklahoma. | ||
| Oklahoma Teachers Retirement System A public retirement program for educators, established in 1943. | ||
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