@misc{indiciaed89fe4a157d8,
  title = {Training in ERCP.},
  author = {J W Leung and R S Chung},
  doi = {10.1016/s0016-5107(92)70493-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/1511834/},
  note = {Source identifier: 1511834}
}