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IP address: 3.84.7.255
Time: 2024-03-29T00:35:11Z
URL: http://scholar.google.com/scholar_lookup?title=Closure+of+the+ductus+arteriosus+in+premature+infants+by+inhibition+of+prostaglandin+synthesis.&year=1976&author=Heymann&journal=N.+Engl.+J.+Med.&volume=295&pages=530-533