i.Creatinine ≤ 1.5 times UNL (upper normal of the limit) ; ii.Bilirubin ≤ 1.5 times UNL; iii.ASAT (SGOT) ≤ 2.5 times the upper limit of normal if no liver metastasis and ≤ 5 times the upper limit of normal in the presence of liver metastasis ; iv.ALAT (SGPT) ≤ 2.5 times the upper limit of normal if no liver metastasis and ≤ 5 times the upper limit of normal in the presence of liver metastasis;