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IP address: 3.85.38.100
Time: 2024-03-29T13:49:05Z
URL: http://scholar.google.com/scholar_lookup?title=Use+of+hormonal+contraceptives+and+risk+of+HIV-1+transmission%3A+a+prospective+cohort+study&year=2012&author=Heffron&journal=Lancet+Infect+Dis&volume=12&issue=1&pages=19-26&doi=10.1016%2FS1473-3099%2811%2970247-X&pmid=21975269