Q Which of the following is not a criteria for diagnosing Sphincter of Oddi Dysfunction
a) Common Bile Duct diameter more than 12 mm on USG
b) Decrease in Common Bile Duct pressure after infusion of Cholecystokinin
c) Ampullary pressure more than 40 mm Hg
d) Delayed emptying of contrast from Common Bile Duct after ERCP