1. Methylparaben—an overlooked cause of local anesthetic hypersensitivity;Larson;Anesth Prog,1977
2. Allergy to local anesthetics;Aldrete;JAMA,1969
3. Textbook of medical physiology;Guyton,1971
4. Oral microbiology and infectious disease;Burnett,1968
5. Review of medical microbiology;Jawetz,1972