TY - RPRT TI - Serum tryptophan decrease correlates with immune activation and impaired quality of life in colorectal cancer. AU - A Huang AU - D Fuchs AU - B Widner AU - C Glover AU - D C Henderson AU - T G Allen-Mersh PY - 2002 DO - 10.1038/sj.bjc.6600336 UR - https://pubmed.ncbi.nlm.nih.gov/12087451/ ID - 12087451 ER -