Uncommon cause of upper gastrointestinal bleeding: spontaneous large gastric intramural hematoma Tiago Lima Capela; Tiago Cúrdia Gonçalves; Joana Magalhães; José Cotter;

Ki-67 labelling index is related to the risk classification and prognosis of gastrointestinal stromal tumours: a retrospective study Jian-ping Wang; Lan Liu; Zi-ang Li; Qian Wang; Xiao-yue Wang; Jun Lin;