[A Case of Gastro-Gastric Intussusception Secondary to Primary Gastric Lymphoma]. - Jo HH; Kang SM; Kim SH; Ra M; Park BK; Kwon JG; Kim EY; Jung JT; Kim HG; Ryoo HM; Kang UR (The Korean journal of gastroenterology = Taehan Sohwagi Hakhoe chi, 2016)