@misc{indiciae30df318033f1,
  title = {Constructing time-specific reference ranges.},
  author = {P Royston},
  year = {1991},
  doi = {10.1002/sim.4780100502},
  url = {https://pubmed.ncbi.nlm.nih.gov/2068420/},
  note = {Source identifier: 2068420}
}