1. Management of the difficult child: a survey of pediatric dentists’ use of restraints, sedation and general anesthesia;Nathan;ASDC Journal of Dentistry for Children,1989;
2. General Dental Council Publisher 1997; modified 1998
3. Poswillo DE. 1990: 1
4. British Society of Paediatric Dentistry. A policy document on sedation for paediatric dentistry;Roberts;International Journal of Paediatric Dentistry,1996
5. Bleomycin therapy: a contraindication to the use of nitrous oxide-oxygen psychosedation in the dental office;Fleming;Pediatric Dentistry,1988;