ASSESSMENT OF SET UP ERRORS AND DETERMINATION OF PLANNING TARGET VOLUME MARGINS IN IMAGE GUIDED RADIOTHERAPY FOR CERVICAL CANCER PATIENTS TREATED IN SUPINE POSITION Journal title: IJSR-International Journal Of Scientific Research Authors: Dr. Apurba Kumar Kalita, Dr. Ghritashee Bora*, Dr. Mouchumee Bhattacharyya, Moirangthem Nara Singh,... Subject(s):