Clinical outcomes of endoscopic versus laparoscopic resection for senile patients with gastric gastrointestinal stromal tumours (2 to 4 cm) originating from the muscularis propria layer - Meng, Xi; Hu, Yun-Fei; Mao, Xin-Li; Zheng, Hai-Hong; Zhou, Shen-Kang; Zhang, Yu (Gastroenterology Review/Przegląd Gastroenterologiczny, 2022)