@misc{indiciae9f6c48e91e48,
  title = {Epidemiological research methods. Part III. Randomised controlled trials (for interventions).},
  author = {J L Botha and D Yach},
  year = {1987},
  url = {https://pubmed.ncbi.nlm.nih.gov/3576392/},
  note = {Source identifier: 3576392}
}