| http://www.w3.org/ns/prov#value | - A report in the journal Science in 2003 found that European countries with opt-out policies showed a 16.2 per cent increase in the number of donors.A similar 1998 study in the medical journal The Lancet found that a shift to the opt-out system in Spain, Austria and Belgium had increased the number of donors in all three countries.Other countries such as Australia, which has the lowest rate of orga
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