Mudd S H, Park J H, Lipmann F
BIOCHEMICAL RESEARCH LABORATORY, MASSACHUSETTS GENERAL HOSPITAL, AND DEPARTMENT OF BIOLOGICAL CHEMISTRY, HARVARD MEDICAL SCHOOL, BOSTON, MASSACHUSETTS.
Proc Natl Acad Sci U S A. 1955 Aug 15;41(8):571-6. doi: 10.1073/pnas.41.8.571.