[1] Baskent Univ, Adana Dr Turgut Noyan Res & Treatment Ctr, Fac Med, Dept Radiat Oncol, TR-01120 Adana, Turkey
[2] Baskent Univ, Div Med Oncol, Fac Med, TR-01120 Adana, Turkey
[3] Iskenderun Gelisim Hosp, Div Radiat Oncol, Antakya, Turkey
[4] Adana City Hosp, Div Med Oncol, Adana, Turkey
[5] Hacettepe Univ, Div Med Oncol, Fac Med, Ankara, Turkey
[6] Hacettepe Univ, Dept Radiat Oncol, Fac Med, Ankara, Turkey