Observational versus randomised trial evidence

Lancet. 2004;364(9436):753-4; author reply 754-5. doi: 10.1016/S0140-6736(04)16924-9.
No abstract available

Publication types

  • Letter
  • Comment

MeSH terms

  • Anthropometry
  • Antioxidants / administration & dosage*
  • Antioxidants / metabolism
  • Ascorbic Acid / administration & dosage*
  • Ascorbic Acid / blood
  • Cardiovascular Diseases / prevention & control*
  • Confounding Factors, Epidemiologic
  • Diet
  • Female
  • Humans
  • Male
  • Observation*
  • Randomized Controlled Trials as Topic*
  • Socioeconomic Factors

Substances

  • Antioxidants
  • Ascorbic Acid