Randomised, double blind, placebo controlled comparison of ginkgo biloba and acetazolamide for prevention of acute mountain sickness among Himalayan trekkers: the prevention of high altitude illness trial (PHAIT)BMJ 2004; 328 doi: https://doi.org/10.1136/bmj.38043.501690.7C (Published 01 April 2004) Cite this as: BMJ 2004;328:797
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