Pancreaticobiliary reflux in patients with a normal pancreaticobiliary junction: Pathologic implications

Table 2 Articles from “Carcinogenesis associated to pancreaticobiliary reflux: What is currently known?”– Levels of evidence in normal pancreaticobiliary junction

Authors	Level of evidence
Sai et al[22], 2002	III
Horaguchi et al[26], 2008	III
Sai et al[30], 2005	V
Sai et al[31], 2005	III
Itoi et al[32], 2005	III
Sai et al[33], 2006	V
Sai et al[34], 2006	III
Inagaki et al[35], 2005	V
Beltrán et al[36], 2007	II
Sakamoto et al[37], 2009	III