@misc{indiciae67bf00e36ecb,
  title = {The recto-sigmoid biopsy.},
  author = {R A Justi and M M Sayet and R L Swink},
  year = {1969},
  url = {https://pubmed.ncbi.nlm.nih.gov/5770681/},
  note = {Source identifier: 5770681}
}