| http://www.w3.org/ns/prov#value | - By Alicia Ault WASHINGTON (Reuters Health) - Though there is still no clear consensus, a majority of researchers told a quasi-governmental health panel Thursday that simian virus 40 (SV40) has become established in humans, and that it plays a role in causing cancer, including in people who had virus-contaminated polio vaccines in the 1950s and 1960s.
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