1. Developing pain services around the world;Finley,2006
2. The experience of pain in children;Eland,1977
3. Nursing research: Principles and methods;Polit,1999
4. Breaking the barriers to nursing research;Wuest;Can Nurse,1995
5. Pediatric pain prevalence and parents' attitudes at a cancer hospital in Jordan;Forgeron;J Pain Symptom Manag,2006