Immunohistochemical expression of thymidylate synthase and prognosis in gastric cancer patients submitted to fluoropyrimidine-based chemotherapy - Pereira, Marina Alessandra; Ramos, Marcus Fernando Kodama Pertille; Dias, Andre Roncon; Faraj, Sheila Friedrich; Cirqueira, Cinthya dos Santos; Mello, Evandro Sobroza de; Zilberstein, Bruno; Alves, Venancio Avancini Ferreira; Ribeiro Jr., Ulysses (Chinese journal of cancer research, 2018)