TY - JOUR AU - Tringali, A; Hassan, C; Rota, M TI - Covered vs. uncovered self-expandable metal stents for malignant distal biliary strictures: a systematic review and meta-analysis JO - Endoscopy VL - 50 PY - 2018 DO - 10.1055/s-0043-125062 L3 - PubMed-ID: 29342491 SP - 631 EP - 641 N1 - et al. ER -