@misc{indiciae73ffdb4398ad,
  title = {[On chromatic duodenal catheterization].},
  author = {M N Naĭkhin and D A Teliushchenko and G G LeonT'eva},
  year = {1969},
  url = {https://pubmed.ncbi.nlm.nih.gov/5802780/},
  note = {Source identifier: 5802780}
}