@misc{indiciae34a602d6752c,
  title = {An intragastric retractor.},
  author = {J R Hines and R E Geurkink},
  year = {1970},
  doi = {10.1016/0002-9610(70)90260-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/5309978/},
  note = {Source identifier: 5309978}
}