J Buon
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This article summarises the first steps, current status, and problems of the health system reform in Bulgaria. At the present stage of the reform the emphasis is on establishing the legislative basis, definition of the structures and responsibilities for solving the different problems. In this context, the current situation in oncological health care requires that the State, represented by the Parliament, the Ministry of Health and the National Health Insurance Fund (NHIF), defines clearly its responsibilities for and commitment to these socially important diseases.
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The purpose of this study was to assess the dosimetric effect of the asymmetric jaw misalignment on the junction region for 6 MV photon beams. ⋯ Asymmetric collimators should be evaluated routinely related to inhomogeneity at the junction, especially for the mono-isocentric set-up technique. Small misalignments of asymmetric collimators cause serious inhomogeneity at the junction. If the homogeneity can not be improved, other methods of field matching have to be developed.