[1] Univ Calif Irvine, Heart Dis Prevent Program, Irvine, CA USA
[2] Univ Calif San Diego, La Jolla, CA 92093 USA
[3] Los Angeles Biomed Rsch Inst, Torrance, CA USA
[4] Yale Univ, New Haven, CT USA
[5] Johns Hopkins Univ, Baltimore, MD USA
[6] Wake Forest Univ, Winston Salem, NC 27109 USA
[7] New England Deconess Hosp, Boston, MA USA