Emura F, Gralnek I, Sano Y, Baron TH. Improving early detection of gastric cancer: a novel systematic alphanumeric-coded endoscopic approach. Rev Gastroenterol Peru [nternet]. 8 de agosto de 2017 [citado 22 de julio de 2024];33(1):52-8. isponible en: https://revistagastroperu.com/index.php/rgp/article/view/232