@misc{indiciae03e2fad691b9,
  title = {Randomization and efficiency in Zelen's single-consent design.},
  author = {J Matts and R McHugh},
  year = {1987},
  url = {https://pubmed.ncbi.nlm.nih.gov/3427173/},
  note = {Source identifier: 3427173}
}