IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-10-9-36648 Original Research Paper TO EVALUATE THE ADVERSE EFFECTS OF TEGAFUR URACIL AS METRONOMIC CHEMOTHERAPY IN PREVIOUSLY TREATED ADVANCED HEAD & NECK CANCER PATIENTS - A RETROSPECTIVE STUDY Thakur Dr. Suman Kumar Kujur Dr. Dr. Himanshu Gupta Dr. September 2021 10 9 01 02