1- Aessopos A, Kati M, Meletis J. Thalassemia intermedia today: Should patients regularly receve transfusion?
                                                                                                                Transfusion 2007; 47:792-800.
                                                                                                                2- Borgan-Pignatti C, Galandl R. The thalassemias and related disorders, tbalassemia intermedia. 11th ed .Wintrob's
                                                                                                                clinical hematology. 2004. Vol. 1.p.1350-52.
                                                                                                                3- Forget, G. Thalassemia syndrome, Hematology .In: Hoffman R, Benz EJ Jr, Shattil SJ. Ed. Basic Principles and
                                                                                                                Practice. 4rd ed. Churchill Livingstone: New York; 2005.p.574-575.
                                                                                                                4- Wong Y, Chen F, Tai KS, Yip LKC, Tsang KWT, Chan FL, et al. Imaging features of focal intrahepatic
                                                                                                                extramedullary haematopoiesis Br J Radiol 1999; 72 :p.906-910. Cited19times.
                                                                                                                5- Cameron WR, Ronnert M, Brun A. Extramedullary hemopopoiesis of CNC in ostpolycythemic myeloid metaplasia.
                                                                                                                N Engl J Med 1981; 305: 765.
                                                                                                                6- Gologau R, lupescn I. Thoracic spinal cord compression secondary to extramedullary hematopoiesis in thelassemia
                                                                                                                intermedia successfully treated by local radiotherapy and hydroxyurea: a case report and review of the literature. Haema
                                                                                                                2005; 8:667-674.
                                                                                                                7- Tsitouridis J, Stamos S, Hassapopoulou E, Tsitouridis K, Nikolopoulos P. Extramedullary paraspinal hemetopoiesis
                                                                                                                in thelassemia: CT and MRI evaluation. Eur J Radiol 1999; 30: 33-38.
                                                                                                                8- Cianciulli P, Sorrentino F, Morino L, Massa A, Sergiacomi GL, Donato V, et al. Radiotherapy combined with
                                                                                                                erythropoietin for the treatment of extramedullary hematopoiesis in an alloimmunized patient with thalassemia
                                                                                                                intermedia. Ann Hematol 1996; 72:379-381. Cited 9 times.doi: 10.1007/s002770050190.
                                                                                                                9- Fucharoen S, Siritanaratkul N, Winichagoon P, Chowthaworn J, Siriboon W, Muangsup W, et al. Hydroxyurea
                                                                                                                increases hemoglobin F levels and improves the effectiveness erythropoiesis in β-thalassemia/hemoglobin E disease.
                                                                                                                Blood 1996; 87:887-892.
                                                                                                                10- Aarabi B, Haghshenas M, Rakeii V. Visual failure caused by suprasellar extramedullary hematopoiesis in beta
                                                                                                                thalassemia: Case report. Neurosurgery 1998; 42:922-926. Cited 10 times. doi: 10.1097/00006123-199804000-00134
                                                                                                                11- De Paula EV, Lima CSP, Arruda VR, Alberto FL, Saad STO, Costa FF.Long-term hydroxyurea therapy in betathalassaemia
                                                                                                                patietsn. Eur J Haematol 2003; 70:151-155. Cited 11 times. doi: 10.1034/j.1600-0609.2003.00037.x
                                                                                                                12- Dibbern JR, DA, Loevner LA, Lieberman AP, Salhany KE, Freese A, Marcotte PJ. MR of thoracic cord
                                                                                                                compression caused by epidural extramedullary hematopoiesis in myelodysplastic syndrome. Am J Neuroradiol 1997;
                                                                                                                18:363-366. Cited 24 times.
                                                                                                                13- Gatto I, Terrana V, Biondi L. Compression of the spinal cord due to proliferation of bone marrow in epidural
                                                                                                                space in a splenectomized person with Cooley's disease. Haematologica 1954; 38:61-76.
                                                                                                                14- Atweh GF, DeSimone J, Saunthararajah Y, Fathallah H, Weinberg RS, Nagel RL, et al. Hemoglobinopathies.
                                                                                                                Hematology / the Education Program of the American Society of Hematology. American Society of Hematology.
                                                                                                                Education Program; 2003.p.14-39.
                                                                                                                15- Papavasiliou C, Gouliamos A, Vlahos L, Trakadas S, Kalovidouris A, Pouliades G. CT and MRI of symptomatic
                                                                                                                spinal involvement by extramedullary haemopoiesis. Clinical Radiology 1990; 42:91-
                                                                                                                92. Cited23times.doi:10.1016/S0009-9260(05)82074-4.
                                                                                                                 16- Russo D, Pileri S, Barbieri E, Bandini G, Zaccaria A, Benfenati D, et al. Spinal cord compression by
                                                                                                                extramedullary hematopoietic tissue in a thalassemic patient: prompt effect of radiotherapy. Haematologica
                                                                                                                1989; 74:495-498.
                                                                                                                17-Bradai M, Abad MT, Pissard S, Lamraoui F, Skopinski L, De Montalembert M. Hydroxyurea can eliminate
                                                                                                                transfusion requirements in children with severe β-thalassemia. Blood 2003; 102:1529-1530. Cited36times.
                                                                                                                doi: 10.1182/blood-2003-01-0117.
                                                                                                                18- Wang M, Tang DC, Liu W, Chin K, Zhu JG, Fibach E, et al. Hydroxyurea exerts bi-modal dose-dependent effects
                                                                                                                on erythropoiesis in human cultured erythroid cells via distinct pathways Br J Haematol 2002 ; 119 :1098-
                                                                                                                1105. Cited14times. doi: 10.1046/j.1365-2141.2002.03958.x.
                                                                                                                19- Karimi M, Drazi H, Yavarian M. Hematologic and clinical responses of thalassemia intermedia patients to
                                                                                                                Hydroxyurea during 6 years of therapy in Iran. J pediatr Hematol Oncol 2005; 27:380-385.