By Boyle Raymond G.   Pronk Nicolaas P.   Enstad Christopher J.   in American Journal of Health Behavior

ISSN:1945-7359|28|4|347-351

PNG Publications‎(2004)‎

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By Betzner Anne   Boyle Raymond G.   St. Claire Ann W.   in International Journal of Environmental Research and Public Health

ISSN:1660-4601|13|6|608-608

MDPI‎(2016)‎

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By Boyle Raymond G.   Amato Michael S.   Rode Peter   Kinney Ann M.   St. Claire Ann W.   Taylor Kristie   in American Journal of Health Behavior

ISSN:1945-7359|39|5|674-679

PNG Publications‎(2015)‎

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