@misc{indiciaec3ad6096000a,
  title = {Covariate-based constrained randomization of group-randomized trials.},
  author = {Lawrence H Moulton},
  year = {2004},
  doi = {10.1191/1740774504cn024oa},
  url = {https://pubmed.ncbi.nlm.nih.gov/16279255/},
  note = {Source identifier: 16279255}
}