About this page

Our systems have detected unusual traffic from your computer network. This page checks to see if it's really you sending the requests, and not a robot. Why did this happen?

IP address: 44.202.183.118
Time: 2024-03-28T19:54:24Z
URL: http://scholar.google.com/scholar_lookup?title=Sildenafil+increased+exercise+capacity+during+hypoxia+at+low+altitudes+and+at+Mount+Everest+base+camp%3A+a+randomized%2C+double-blind%2C+placebo-controlled+crossover+trial&year=2004&author=Ghofrani&journal=Ann.+Intern.+Med.&volume=141&pages=169-177&pmid=15289213