@misc{indiciae9e60cd987e9d,
  title = {An endoscopic side-viewer.},
  author = {B Z ZIELINSKI and I NAGEL},
  year = {1963},
  doi = {10.1016/s0140-6736(63)91696-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/14003621/},
  note = {Source identifier: 14003621}
}