1. Root resection as a cure for chronic periapical infection: a histologic report of a case showing complete repair;Coolidge;JADA,1930
2. Root resection after four years;Aisenberg;JADA,1931
3. Verification of results of root resection by photomicrographs;Moen;JADA,1940
4. Histological examination of two teeth treated by root resection;Herbert;Br Dent J,1943
5. Foci of infection in relation to nonvital teeth;Garvin;Nat Dent Assoc J.,1919