STATEMENT 
BY 
HARLYN 0. HALV0RS0N, PH.D. 
PAST PRESIDENT 
AMERICAN SOCIETY FOR MICROBIOLOGY 
BEFORE THE 
HEALTH, EDUCATION AND WELFARE HEARING 
ON 
PROPOSED REVISIONS OF THE GUIDELINES 
FOR RECOMBINANT DNA RESEARCH 
SEFTEMBER x 5, 1978 
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