Endoscopic Aspects of Gastric Syphilis - Frazão, Mariana Souza Varella; Vilaça, Thiago Guimarães; Carneiro, Fred Olavo Aragão Andrade; Toma; Reina-Forster, Carolina Eliane; Baba, Elisa Ryoka; Cheng, Spencer; Souza, Thiago Ferreira de; Moura, Eduardo Guimarães Hourneaux de; Sakai, Paulo (Case reports in medicine, 2012)