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Sildenafil Increased Exercise Capacity during Hypoxia at Low Altitudes and at Mount Everest Base Camp: A Randomized, Double-Blind, Placebo-Controlled Crossover Trial
Hossein A. Ghofrani, MD; Frank Reichenberger, MD; Markus G. Kohstall, MD; Eike H. Mrosek, MD; Timon Seeger, MD; Horst Olschewski, MD; Werner Seeger, MD; Friedrich Grimminger, PhD, MD
Annals of Internal Medicine 2004;141:169-177. doi:10.7326/0003-4819-141-3-200408030-00005

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