@misc{indiciaea529c8c0913a,
  title = {Endoscopy in birds.},
  author = {J T Lumeij and P Zwart and M T Frankenhuis and J C Hasselaar and J W Stam},
  year = {1985},
  doi = {10.1080/01652176.1985.9693992},
  url = {https://pubmed.ncbi.nlm.nih.gov/4049722/},
  note = {Source identifier: 4049722}
}