@misc{indiciae4a7a0ed5e97c,
  title = {Spinal anesthesia with extremely fine needles.},
  author = {M Dittman and F Renkl},
  year = {1989},
  doi = {10.1097/00000542-198906000-00041},
  url = {https://pubmed.ncbi.nlm.nih.gov/2729627/},
  note = {Source identifier: 2729627}
}