@misc{indiciae833cfeb09ec5,
  title = {Sample size considerations for non-randomized comparative studies.},
  author = {R W Makuch and R M Simon},
  year = {1980},
  doi = {10.1016/0021-9681(80)90017-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/7354106/},
  note = {Source identifier: 7354106}
}