Department of Radiation Oncology,Sindh Institute of Urology and Transplantation;
Department of Surgical Oncology,Sindh Institute of Urology and Transplantation;
Department of Medical Oncology,Sindh Institute of Urology and Transplantation;
Department of Gastroenterology,Sindh Institute of Urology and Transplantation;
Department of Radiology,Sindh Institute of Urology and Transplantation;
Department of Pathology,Sindh Institute of Urology and Transplantation;
High dose rate; Intraluminal brachytherapy boost; Locally advanced rectal cancer; Preoperative chemoradiation;