@misc{indiciae050ab8952ac9,
  title = {Trans-sacral retroperitoneal pneumography.},
  author = {B M Schnur and J A Sakson},
  year = {1965},
  doi = {10.1016/s0022-5347(17)63704-2},
  url = {https://pubmed.ncbi.nlm.nih.gov/5843741/},
  note = {Source identifier: 5843741}
}