Palliative therapy for malignant gastric outlet obstruction: how does the endoscopic ultrasound-guided gastroenterostomy compare with surgery and endoscopic stenting? A systematic review and meta-analysis - Martins, Rafael Krieger; Brunaldi, Vitor Ottoboni; Fernandes, André Luís; Otoch, José Pinhata; Artifon, Everson Luiz de Almeida (Therapeutic advances in gastrointestinal endoscopy, 2023)