The treatment group received DDP and HCFU, and the control group was given DDP, fluorouracil (FU), calcium folinate (CF).The efficacy and toxicity were evaluated.

• 治疗组病人应用DDP、HCFU化疗，对照组应用DDP、氟尿嘧啶(FU)、醛氢叶酸(CF)化疗，评价两组疗效和毒性反应。