Risk assessment of lymph node metastases in early gastric adenocarcinoma fulfilling expanded endoscopic resection criteria - Pessorrusso, Fernanda Cristina Simoes; Felipe-silva, Aloisio; Jacob, Carlos Eduardo; Ramos, Marcus Fernando Kodama Pertille; Ferreira, Venancio Avancini Alves; Mello, Evandro Sobroza de; Zilberstein, Bruno; Ribeiro Junior, Ulysses; Maluf-Filho, Fauze (Gastrointestinal endoscopy, 2018)