@misc{indiciae19d0d09697d6,
  title = {Letter: Racial variation in maternal serum-alpha-fetoprotein.},
  author = {L M Shapiro and L G Skinner and H V Phillips and C R Whitfield},
  year = {1975},
  doi = {10.1016/s0140-6736(75)91025-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/53619/},
  note = {Source identifier: 53619}
}