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Allocation concealment and blinding: when ignorance is bliss

Peta M Forder, Val J Gebski and Anthony C Keech
Med J Aust 2005; 183 (3): . || doi: 10.5694/j.1326-5377.2005.tb06976.x
Published online: 1 August 2005

Peta M Forder,* Val J Gebski, Anthony C Keech


  • NHMRC Clinical Trials Centre, University of Sydney, Locked Bag 77, Camperdown, NSW 1450.


Correspondence: enquiry@ctc.usyd.edu.au

  • 1. Schulz KF, Chalmers I, Altman DG. The landscape and lexicon of blinding in randomized trials. Ann Intern Med 2002; 136: 254-259.
  • 2. Beller EM, Gebski V, Keech AC. Randomisation in clinical trials. Med J Aust 2002; 177: 565-567. <MJA full text>
  • 3. Forder PM, Gebski VJ, Keech AC. Allocation concealment and blinding: when ignorance is bliss. Med J Aust 2005; 182: 87-89. <MJA full text>
  • 4. Karlowski TR, Chalmers TC, Frenkel LD, et al. Ascorbic acid for the common cold. JAMA 1975; 231: 1038-1042.
  • 5. Chalmers TC. Discussion. To the preceding article by H Hemilä. J Clin Epidemiol 1996; 49: 1085.
  • 6. Hemilä H. Discussion. To the dissent by Thomas Chalmers. J Clin Epidemiol 1996; 49: 1087.
  • 7. Altman DG, Schulz KF, Moher D, et al for the CONSORT Group. The revised CONSORT statement for reporting randomised trials : explanation and elaboration. Ann Intern Med 2001; 134: 663-694.
  • 8. Schulz KF, Grimes DA. Allocation concealment in randomised trials: defending against deciphering. Lancet 2002; 359: 614–618.

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