@misc{indiciae668a9de11705,
  title = {Methodological issues in cohort studies. II: Power calculations.},
  author = {G R Howe and A M Chiarelli},
  year = {1988},
  doi = {10.1093/ije/17.2.464},
  url = {https://pubmed.ncbi.nlm.nih.gov/3403142/},
  note = {Source identifier: 3403142}
}