@misc{indiciae43a28d551a6f,
  title = {D.Obst.R.C.O.G.},
  author = {B Heber and C J Cummins},
  year = {1971},
  doi = {10.5694/j.1326-5377.1971.tb87641.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/5552425/},
  note = {Source identifier: 5552425}
}