1Preoperative chemotherapy protocol: PLF: two cycles, each consisting of cisplatin (50 mg/m2 body surface area (BSA)) at weeks 1, 3 and 5, and both leucovorin (500 mg/m2 BSA) and 5-fluorouracil (2000
? Range from 0 to 6 with highest scores indicate complete independence. ° Range from 0 to 11 with highest scores indicate greater comorbidity. ° Mean±standard deviation. *Statistically significant fi
