Check for signs of bleeding, including examination of urine and stool for blood how can i get cytotec without a prescription Phase II clinical trials of gefitinib or erlotinib have shown poor overall response rate ORR while clinical trial with gefitinib in combination with epirubicin and cyclophosphamide showed no significant difference in pathologic complete response in ER negative breast cancer 142, 143, 144, 145, 146