61. [Dr. Donald Fredrickson testifies at recombinant DNA congressional hearings] Publication: 1977 Subject(s): PhysiciansAdministrative PersonnelFredrickson, Donald S.
62. [Dr. Fredrickson's visit to the National Institute of Environmental Health Sciences] Publication: 1978 Subject(s): PhysiciansAdministrative PersonnelFredrickson, Donald S.
63. [Dr. Donald S. Fredrickson] Publication: 1979 Subject(s): PhysiciansAdministrative PersonnelFredrickson, Donald S.