@misc{indiciae90fa4584350f,
  title = {Effectiveness research and implications for study design: sample size and statistical power.},
  author = {R Sturm and J Unützer and W Katon},
  doi = {10.1016/s0163-8343(99)00024-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/10514951/},
  note = {Source identifier: 10514951}
}