Feasibility and Safety of ERCP in the Treatment of Biliary Strictures after Liver Transplantation: With a Report of 37 Cases

Table 4

Effect of MS and PS on RBO and adverse events.

Groups	RBO		Adverse events
	Yes	No	Yes	No
MS	1 (9.1)	10 (90.9)	6 (54.5)	5 (45.5)
PS	9 (34.6)	17 (65.4)	7 (26.9)	19 (73.1)
	0.224		0.143

: Fisher’s exact test.