1. Los Angeles Biomed Research Institute, Torrance, CA; Beth Israel Deaconess Hosp, Boston, MA; Univ of CA, Los Angeles, CA; Univ of Arizona, Tucson, AZ; Univ of Hawaii, Manoa, HI; Park Nicollet Institute, Minneapolis, MN; John Wayne Cancer Institute, Los Angeles, CA; Kaiser Permanente Ctr for Health Research, Portland, OR; The Institute for Cancer Prevention, New York, NY