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IP address: 44.197.114.92
Time: 2024-03-28T19:46:04Z
URL: http://scholar.google.com/scholar_lookup?title=Generation+and+analysis+of+interleukin-4+deficient+mice&year=1991&author=K%C3%BChn&journal=Science&volume=272&pages=50-54&doi=10.1126%2Fscience.272.5258.50&pmid=8600536