BIEGELEISEN, JOSEPH Z.; CHERRY, WILLIAM B.; SKALIY, PETER; MOODY, MAX D.; BIEGELEISEN JOSEPH Z.; Special Research Unit, Laboratory Branch, C.D.C., Public Health Service, IT. S. Department of Health, Education, and Welfare; CHERRY WILLIAM B.; Special Research Unit, Laboratory Branch, C.D.C., Public Health Service, IT. S. Department of Health, Education, and Welfare; SKALIY PETER; Technical Development Laboratories, Technology Branch, C.D.C., Public Health Service, U. S. Department of Health, Education, and Welfare; MOODY MAX D.; Special Research Unit, Laboratory Branch, C.D.C., Public Health Service, IT. S. Department of Health, Education, and Welfare