Affiliations Research 1958Associate Professor Of Epidemiology And BiochemistryJohns Hopkins University School Of Hygiene And Public Health1948Special InvestigatorRockefeller Institute1946Research AssistantWashington University Medical School1943StudentUniversity Of Pennsylvania1944Research AssistantUniversity Of Pennsylvania 1943[subject unknown]Beginners1944[subject unknown]Research Assistant1946[subject unknown]Library Readers1948[subject unknown]Independent1958[subject unknown]Library Readers