TY  - RPRT
TI  - The "Hansel and Gretel" technique for access problems during ERCP.
AU  - H Huck
AU  - M Goldberg
AU  - M Ruchim
DO  - 10.1016/s0016-5107(94)70088-5
UR  - https://pubmed.ncbi.nlm.nih.gov/8056257/
ID  - 8056257
ER  -