DOI: 10.1055/s-00000012

Endoscopy

References

Halttunen J, Meisner S, Aabakken L et al.
Difficult cannulation as defined by a prospective study of the Scandinavian Association for Digestive Endoscopy (SADE) in 907 ERCPs.

Scand J Gastroenterol 2014;
49: 752-758

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