@misc{indiciaeb7219515d47e,
  title = {Efficiency of case-control studies with multiple controls per case: continuous or dichotomous data.},
  author = {H K Ury},
  year = {1975},
  url = {https://pubmed.ncbi.nlm.nih.gov/1100136/},
  note = {Source identifier: 1100136}
}