| http://www.w3.org/ns/prov#value | - Consider more frequent exams than every five years for some subgroups and for some risk factors that emerge at a rapid rate Work harder to bring back those who did not return for the recent Year 20 exam; missing data, which were most common in black men, could be problematic Encourage interaction and collaboration with other studies, especially for policy and prevention messages and data-sharing;
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