@misc{indiciaeb3797c9638d3,
  title = {Letter: Holiday effects upon natality.},
  author = {L B Borst and M Osley},
  year = {1975},
  doi = {10.1016/0002-9378(75)90737-1},
  url = {https://pubmed.ncbi.nlm.nih.gov/1146939/},
  note = {Source identifier: 1146939}
}