@misc{indiciaec92cf4c8874a,
  title = {Clinical trials: introduction.},
  author = {P Held and H Wedel and L Wilhelmsen},
  year = {2003},
  doi = {10.1046/j.1365-2796.2003.01202.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/12859690/},
  note = {Source identifier: 12859690}
}