1. Chronic abdominal pain in children;American Academy of Pediatrics Subcommittee on Chronic Abdominal Pain;Pediatrics,2005
2. Why are clinical problems difficult? General practitioners' opinions concerning 24 clinical problems;Leclere;Canadian Medical Association Journal,1990
3. Limb pains with no organic disease;Apley;Clinics in Rheumatic Disease,1976
4. Gunshot wounds and other injuries of nerves;Mitchell,1864
5. Reflex sympathetic dystrophy: changing concepts and taxonomy;Stanton-Hicks;Pain,1995