Beyond randomised versus observational studies

Lancet. 2004 May 22;363(9422):1660-1. doi: 10.1016/S0140-6736(04)16285-5.
No abstract available

Publication types

  • Comment

MeSH terms

  • Confounding Factors, Epidemiologic
  • Humans
  • Observation*
  • Randomized Controlled Trials as Topic*
  • Reproducibility of Results
  • Research Design