@misc{indiciae25acb6c51a92,
  title = {When should randomisation begin?},
  author = {T C Chalmers},
  year = {1968},
  doi = {10.1016/s0140-6736(68)90316-4},
  url = {https://pubmed.ncbi.nlm.nih.gov/4171344/},
  note = {Source identifier: 4171344}
}