3Trapani S, Grsolia F, Simonni G, et al. Incidence of occult Cancer in children presenting with musculoskeletal symptoms: a 10-year survey in a pediatric rheumatology unit[J]. Semin Arthritis Rheum ,2000,29(6) :348-359.
4Michad LM,Ionan S,Ran Y,et al. Fever of unknown origin[J].Pediatr Clin North Am,1995,42:999-1015.
5Mouaket AE,EI-Ghanim MM,Abd-EI-AI YK,et al. Prolonged unexplained pyrexia:a review of 221 paediatric cases from kuwait[J]. Infection, 1990,18: 226- 229.
6Steele RW,Jones SM, Lowe BA, et al. Usefulness of scanning procedures for diagnosis of fever of unknown origin in children[J]. J Pediatr, 1991,119:526 - 530.
7Knockaert Dc,Dujardin KS,Bobbaers HJ. Long-term follow-up of patients with undiagnosed fever of unknown origin[J]. Arch Intern Med, 1996,156: 618- 620.