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IP address: 35.175.212.5
Time: 2024-03-28T23:39:10Z
URL: http://scholar.google.com/scholar_lookup?title=Phase-shifting+human+circadian+rhythms%3A+influence+of+sleep+timing%2C+social+contact+and+light+exposure&year=1996&author=Duffy&journal=J+Physiol+%28Lond%29&volume=495&issue=Pt+1&pages=289-297&pmid=8866371