1. Incidence and duration of pain following endodontic therapy;Seltzer;Oral Surg,1961
2. The intracanal use of sulfathiazole in endodontics to reduce pain;Frank;JADA,1968
3. Endodontics;Ingle,1965
4. Factors influencing clinical evaluation of drugs;Modell;JAMA,1958
5. Postoperative pain observations on 341 cases;Gerdes,1960