1. Sildenafil and Bosentan Improve Arterial Oxygenation During Acute Hypoxic Exercise: A Controlled Laboratory Trial 
I. Mark Olfert, PhD, Alexander Loeckinger, MD, Benedikt Treml, MD, Martin Faulhaber, PhD, Markus Flatz, PhD, Martin Burtscher, MD, PhD, Susanne Truebsbach, MD, Axel Kleinsasser, MD 
Wilderness & Environmental Medicine 
Volume 22, Issue 3, Pages (September 2011)
DOI: /j.wem
Copyright © 2011 Wilderness Medical Society Terms and Conditions

2. Figure
Timeline depicting the exercise protocol before and after drug treatment.
Wilderness & Environmental Medicine  , DOI: ( /j.wem )
Copyright © 2011 Wilderness Medical Society Terms and Conditions