Schwarz, E [Consistent focal therapy as a prerequisite for successful therapy of chronic diseases]. [electronic resource] - Der Freie Zahnarzt Feb 1973 - 74-81 p. digital Publication Type: Journal Article ISSN: 0340-1766 Subjects--Topical Terms: Chronic Disease--therapyDenturesFocal Infection, Dental--therapyHumansJaw Diseases--therapyMaxillary SinusPeriodontal Diseases--therapy