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Time: 2024-03-28T14:35:57Z
URL: http://scholar.google.com/scholar_lookup?title=The+protovirus+hypothesis%3A+speculations+on+the+significance+of+RNA-directed+DNA+synthesis+for+normal+development+and+for+carcinogenesis.&year=1971&author=Temin&journal=J.+Natl.+Cancer+Inst.&volume=46&pages=3-7&pmid=5115908