Endoscopic papillary large balloon dilation vs endoscopic sphincterotomy for retrieval of common bile duct stones: A meta-analysis

Table 2 Quality assessment of the included articles based on the Jadad score

Ref.	Jadad score of RCTs			Article type	Score
	Randomization	Blindness	Withdrawal
Qian et al[25], 2013	Appropriate	NA	Clear	Full text	3
Teoh et al[26], 2012	Appropriate	Double	Clear	Full text	5
Oh et al[16], 2012	Appropriate	Single	Clear	Full text	4
Kim et al[15], 2009	Appropriate	NA	Clear	Full text	3
Heo et al[14], 2007	Appropriate	NA	Clear	Full text	3

RCT: Randomized controlled trial.