@misc{indiciae3d24b669ff44,
  title = {Letter: Frequency of cystic-fibrosis gene.},
  author = {M D Crawfurd},
  year = {1975},
  doi = {10.1016/s0140-6736(75)91468-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/46082/},
  note = {Source identifier: 46082}
}