@misc{indiciae59d9059eea99,
  title = {Cost efficiency in study planning and completion. How many cases? How many controls?},
  author = {M J Rosenberg},
  year = {1983},
  doi = {10.1016/0002-9343(83)90414-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/6416065/},
  note = {Source identifier: 6416065}
}