1. What is preventive medicine;Leavell,1958
2. Natural history and prevention of oral disease;Sognnaes,1958
3. Dentistry and the fluoridation issue: the dentist in the social and political arena;Douglas;New York Dent. J.,1962
4. Voting behavior on fluoridation reférendums: a reevaluation;Hahn;JADA,1965
5. General semantic orientation to dentistpatient relations;Jan;JADA,1964