1. Improvement of the crown-root ratio by endodontic endosseous implants;Frank;JADA,1967
2. Endodontic therapy;Weine,1972
3. Therapy for the divergent pulpless tooth by continued apical formation;Frank;JADA,1966
4. Endodontics;Ingle,1965
5. The relationship of endodontic-periodontic lesions;Simon;J Periodontol,1972