@misc{indiciaebf77963366be,
  title = {Embryonic heart rate in dated human embryos.},
  author = {J Wisser and P Dirschedl},
  year = {1994},
  doi = {10.1016/0378-3782(94)90152-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/8088227/},
  note = {Source identifier: 8088227}
}