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- National Educational Television43
- Encyclopaedia Britannica Films42
- Encyclopaedia Britannica Films Inc.39
- Erpi Classroom Films Inc.20
- See Other Contributors17
- Encyclopaedia Britannica Films, inc.11
- Emerson Film Corporation8
- Indiana University School of Medicine. Medical Educational Resources Program8
- Indiana University. Radio and Television Service7
- Milan Herzog7
- Byrnes, Robert Francis6
- John T. Bobbitt6
- Centers for Disease Control and Prevention (U.S.)5
- Erpi Classroom Films, inc.5
- Ralph Buchsbaum5
- William Kay5
- Encyclopaedia Britannica Films, Inc.4
- Gunderman, Richard B.4
- Hermann I. Schlesinger4
- I. Mankofsky4