ACS; AGRICULTURAL RESEARCH SERVICE; AMERICAN HEART ASSN; AMERICAN LUNG ASSN; COOPERATIVE STATE RESEARCH SERVICE; CTR, COUNCIL FOR TOBACCO RESEARCH; HARVARD; HEW, DEPT OF HEALTH EDUCATION AND WELFARE; NATL HEART LUNG + BLOOD INST; NCI, NATL CANCER INST; NIH, NATL INST OF HEALTH; TI, TOBACCO INST; UNIV OF CA; UNIV OF KY; USDA, U.S. DEPT OF AGRICULTURE; WA UNIV