@misc{indiciae4152955f35c6,
  title = {Understanding controlled trials. Randomisation methods: concealment.},
  author = {D J Torgerson and C Roberts},
  year = {1999},
  doi = {10.1136/bmj.319.7206.375},
  url = {https://pubmed.ncbi.nlm.nih.gov/10435967/},
  note = {Source identifier: 10435967}
}