@misc{indiciae6b516ab9113f,
  title = {Clinical trials in general practice.},
  author = {G Greenberg},
  year = {1991},
  doi = {10.1136/bmj.303.6808.940},
  url = {https://pubmed.ncbi.nlm.nih.gov/1954416/},
  note = {Source identifier: 1954416}
}