TY - JOUR TI - Video Comment on Yi-Zhi Chen et al. SN - 0013-726X SN - 1438-8812 PY - 2019 JO - Endoscopy JF - Endoscopy LA - EN VL - 51 IS - 04 SP - v7 EP - v7 DA - 2019/03/18 PB - © Georg Thieme Verlag KG DO - 10.1055/a-0855-7035 UR - http://www.thieme-connect.com/products/ejournals/abstract/10.1055/a-0855-7035 ER -