[1] NHGRI, Social & Behav Res Branch, NIH, Bethesda, MD 20892 USA
[2] NHGRI, Genome Technol Branch, Bethesda, MD 20892 USA
[3] NCI, Div Canc Control Prevent & Screening, Bethesda, MD 20892 USA
[4] Boston Univ, Dept Social & Behav Sci, Boston, MA 02215 USA
[5] Univ Georgia, Dept Speech Commun, Athens, GA 30602 USA
[6] CDC, Off Publ Hlth Genom, Atlanta, GA 30333 USA
[7] Univ Alabama, Dept Genet, Tuscaloosa, AL USA
[8] Kings Coll London, Dept Psychol, London WC2R 2LS, England
[9] Univ Calif San Diego, Dept Family & Prevent Med, San Diego, CA 92103 USA
[10] Univ So Calif, Keck Sch Med, Dept Prevent Med, Los Angeles, CA 90033 USA