Letter

Ginkgo biloba and acetazolamide for acute mountain sickness: Bias in participants may underestimate effectiveness of agents

BMJ 2004; 329 doi: 10.1136/bmj.329.7458.172 (Published 15 July 2004)
Cite this as: BMJ 2004;329:172.1

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  1. Heather L Elphick (elphickdh@hotmail.com), specialist registrar, geriatric medicine,
  2. David A Elphick, specialist registrar, gastroenterology
  1. Northern General Hospital, Sheffield S5 7AU
  2. Royal Hallamshire Hospital, Sheffield S10 2JF

    EDITOR—In their randomised controlled trial of gingko biloba and acetazolamide for preventing acute mountain sickness Gertsch et al do not include data on eligible trekkers who declined enrolment.1 These data are …

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