TY - JOUR TI - EFFECT OF THE AIR GAP BETWEEN THE PATIENT AND BOLUS TO THE SURFACE DOSE AT PERPENDICULAR AND OBLIQUE ELECTRON TREATMENTS AU - SONGÜL Ç KARAÇAM, AU - BAYRAM DEMİR, AU - BASRİ GÜNHAN, AU - AYŞE KOCA, JO - Turk J Oncol PY - 2002 VL - 17 SP - 127 EP - 130 DO - ER -