The Effect of Epinephrine Sprayed on the Papilla on Prevention of Post–Endoscopic Retrograde Cholangiopancreatography Pancreatitis (PEP): A Double-Blind Randomized Control Trial - Alipour, Aliasghar; Esmaeilzadeh, Abbas; Shadkam, Omid; Sarboozi Hoseinabadi, Tahereh; Kakhki, Samaneh (Acta Medica Iranica, 2020)