Tumor dihydropyrimidine dehydrogenase in stage II and III colorectal cancer: low level expression is a beneficial marker in oral-adjuvant chemotherapy, but is also a predictor for poor prognosis in patients treated with curative surgery alone. - Tsuji,T.; Sawai,T.; Takeshita,H.; Nakagoe,T.; Hidaka,S.; Atsushi,N.; Yamaguchi,H.; Yasutake,T.; Nagayasu,T.; Tagawa,Y. (Cancer Lett, 2004)