RT Journal Article SR Electronic T1 Systematic review of endoscopic ultrasound-guided biliary drainage versus percutaneous transhepatic biliary drainage JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 14 OP 14 DO 10.7861/clinmed.22-4-s14 VO 22 IS Suppl 4 A1 Zeinab Hassan A1 Eyad Gadour YR 2022 UL http://www.rcpjournals.org/content/22/Suppl_4/14.abstract