@misc{indiciae80458987be43,
  title = {Estimating maternal mortality in developing countries.},
  author = {W Graham and W Brass and R Snow},
  year = {1988},
  doi = {10.1016/s0140-6736(88)91211-1},
  url = {https://pubmed.ncbi.nlm.nih.gov/2893217/},
  note = {Source identifier: 2893217}
}