@misc{indiciae25f3845d62d7,
  title = {Birth cohort analysis using irregular cross-sectional data: a technical note.},
  author = {E Schifflers and M Smans and C S Muir},
  doi = {10.1002/sim.4780040110},
  url = {https://pubmed.ncbi.nlm.nih.gov/3873104/},
  note = {Source identifier: 3873104}
}