@misc{indiciae6e4e1f828d2d,
  title = {Can observational studies replace or complement experiment?},
  author = {S van der Linden and C H Goldsmith and J Woodcock and V Nassonova},
  year = {1994},
  url = {https://pubmed.ncbi.nlm.nih.gov/7799388/},
  note = {Source identifier: 7799388}
}