STANFORD UNIVERSITY MEDICAL CENTER 
STANFORD, CALIFORNIA 94305 
DEPARTMENT OF BIOCHEMISTRY 
Stanford University School of Medicine 
Area Code 415 
497-6161 
December 23, 1980 
Director 
Office of Recombinant DNA Activities 
Building 31, Room 4A52 
National Institutes of Health 
Bethesda, Maryland 20205 
Dear Sir: 
I support Winston Brill's proposal that all experiments with non- 
pathogenlc lower pro- and eukaryotes be permitted under PI containment. 
Sincerely 
Ronald W. Davis 
Professor of Biochemistry 
RWD/ns 
[5551 
