1. Lorber B. Are all diseases infectious? Another look. Ann Int Med 1999; 131: 989-990.
2. Ingle J.I., Bakland L.K., Baumgartner J.C. Ingle's Endodontics. 6th edition. Hamilton Ontario: BC Decker; 2008.
3. Miller W.D. The micro-organisms of the human mouth: the local and general diseases which are caused by them. Philadelphia: The S.S. White Dental MFG; 1890.
4. Patel S., Barnes J.J. The Principles of Endodontics. 2nd edition. Oxford: Oxford University Press; 2013.
5. Miller W.D. An introduction to the study of the bacteriopathology of the dental pulp. Dental Cosmos 1894; 36: 505-528.