Periodic Maintenance And Repair Of 16-Row Computerized Tomography System (Model: Bright-Speed ​​- Manufacturer: Ge), 32-Row Computerized Tomography System (Model: Revolution Act - Manufacturer: Ge), 64-Row Computerized Tomography System (Model: Optima Ct660 - Manufacturer: Ge), X-Ray Bone Mineral Density Measuring Machine (Model: Aria - Manufacturer: Ge)