[1] Semey Nucl Med & Oncol Ctr, Adm Dept, Semey, Kazakhstan
[2] Semey Med Univ, Dept Clin Oncol & Nucl Med, Semey, Kazakhstan
[3] Semey Med Univ, Dept Family Med, Semey, Kazakhstan
[4] Semey Med Univ, Dept Epidemiol & Biostat, Semey, Kazakhstan
[5] UMIT Int Oncol Ctr Tomotherapy, Res Management Dept, Astana, Kazakhstan
[6] Semey Med Univ, Dept Cardiovasc & Thorac Surg, Semey, Kazakhstan
[7] Cent Asian Inst Med Res, Dept Publ Hlth, Astana, Kazakhstan
[8] Asian Pacific Org Canc Prevent, Dept Sci, Bishkek, Kyrgyzstan
[9] Kokshetau Univ, Res Inst Life & Hlth Sci, Higher Sch Med, Kokshetau, Kazakhstan