8. Pre-existing hepatic impairment: The screening for total bilirubin > 1.5 times the upper limit of normal will be done by the oncologist to qualify for chemoradiation. The screening for >2 times the upper limit of normal hepatotoxicity: Alkaline phosphatase (ALP) and Alanine aminotransferase (ALT) will be done by the oncologist to qualify for chemoradiation.The screening results for Aspartate aminotransferase (AST) must be < 2 times the upper limit of normal if available in the medical records.