A novel and feasible technique for diagnosis and treatment of small subepithelial tumors - do Monte Junior, Epifânio Silvino; Chaves, Dalton Marques; Sakai, Christiano Makoto; Luz, Gustavo de Oliveira; Ribeiro, Igor Braga; Sagae, Vitor Massaro Takamatsu; de Moura, Eduardo Guimarães Hourneaux (Endoscopy, 2020)