@misc{indiciae1378dbdaa964,
  title = {Clinical trials: study design and analysis.},
  author = {Y van der Graaf},
  year = {1998},
  doi = {10.1016/s0720-048x(97)00159-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/9639135/},
  note = {Source identifier: 9639135}
}