@misc{indiciae55297d6ecd56,
  title = {[Experience with endoscopy].},
  author = {P Ia Grigor'ev and I A Sytnik and E M Starodub and I I Gritsenko and S I Sytnik},
  year = {1978},
  url = {https://pubmed.ncbi.nlm.nih.gov/726400/},
  note = {Source identifier: 726400}
}