References

  1. Moher D, Dulberg CS, Wells GA: Statistical power, sample size, and their reporting in randomized controlled trials.

    JAMA 1994, 272:122-124. PubMed Abstract | Publisher Full Text OpenURL

  2. Machin D, Campbell MJ, Fayers P, Pinol A:

    Sample Size Tables for Clinical Studies. Oxford, UK: Blackwell Science Ltd; 1987. OpenURL

  3. Rivers E, Nguyen B, Havstad S, Ressler J, Muzzin A, Knoblich B, Peterson E, Tomlanovich M: Early goal-directed therapy in the treatment of severe sepsis and septic shock.

    N Engl J Med 2001, 345:1368-1377. PubMed Abstract | Publisher Full Text OpenURL

  4. Altman DG:

    Practical Statistics for Medical Research. London, UK; Chapman & Hall; 1991. OpenURL

  5. Altman DG: How large a sample?

    In: Statistics in Practice. (Edited by: Gore SM, Altman DG). London, UK: British Medical Association 1982. OpenURL

  6. Anonymous: Ventilation with lower tidal volumes as compared with traditional tidal volumes for acute lung injury and the acute respiratory distress syndrome. The Acute Respiratory Distress Syndrome Network.

    N Engl J Med 1996, 342:1301-1308. OpenURL

  7. Gattinoni L, Tognoni G, Pesenti A, Taccone P, Mascheroni D, Labarta V, Malacrida R, Di Giulio P, Fumagalli R, Pelosi P, Brazzi L, Latini R, Prone-Supine Study Group: Effect of prone positioning on the survival of patients with acute respiratory failure.

    N Engl J Med 2001, 345:568-573. PubMed Abstract | Publisher Full Text OpenURL

  8. Zijlstra JG, Ligtenberg JJ, van der Werf TS: Prone positioning of patients with acute respiratory failure.

    N Engl J Med 2002, 346:295-297. PubMed Abstract | Publisher Full Text OpenURL

  9. Slutsky AS: The acute respiratory distress syndrome, mechanical ventilation, and the prone position.

    N Engl J Med 2001, 345:610-612. PubMed Abstract | Publisher Full Text OpenURL