ACKNOWLEDGMENTS The clinical testing of liver fractions was under the supervision of the following physicians, whose cooperation is gratefully acknowledged: Harold L. Alt, Northwestern University Medical School; Quin B. DeMarsh, University of Washington Medical School; Robert A. Green, University of Minnesota Medical School; R. A. Hughes, St. Mary's Hospital, Montreal; C. M. Huguley, Emory University Medical School; Carl Johnson, St. Luke's Hospital, Chicago; Louis Limarzi, University of Illinois Medical School; Edward S. Mills, Montreal General Hospital; T. R. Smith, University of Chicago Medical School.
