By Davidson J. Kenneth   Moore Nelwyn B.   in American Journal of Health Behavior

ISSN:1945-7359|23|4|293-302

PNG Publications‎(1999)‎

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By Davidson J. Kenneth   Moore Nelwyn B.   Ullstrup Kristen Marie   in American Journal of Health Behavior

ISSN:1945-7359|28|4|335-346

PNG Publications‎(2004)‎

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