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Kaneko Y. Methotrexate-associated lymphoproliferative disorder. Nihon Rinsho Meneki Gakkai Kaishi (Jpn J Clin Immunol) 40: 174-178, 2017 (in Japanese, Abstract in English).","DOI":"10.2177\/jsci.40.174"},{"key":"2","doi-asserted-by":"crossref","unstructured":"2. Tokuhira M, Tamaru JI, Kizaki M. Clinical management for other iatrogenic immunodeficiency-associated lymphoproliferative disorders. J Clin Exp Hematop 59: 72-92, 2019.","DOI":"10.3960\/jslrt.19007"},{"key":"3","doi-asserted-by":"crossref","unstructured":"3. Ohkura Y, Shindoh J, Haruta S, et al. Primary adrenal lymphoma possibly associated with Epstein-Barr virus reactivation due to immunosuppression under methotrexate therapy. Medicine (Baltimore) 94: e1270, 2015.","DOI":"10.1097\/MD.0000000000001270"},{"key":"4","doi-asserted-by":"crossref","unstructured":"4. Omameuda T, Miyato H, Sata N, Lefor AK. 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Involvement of Epstein-Barr virus in the development and spontaneous regression of methotrexate-associated lymphoproliferative disorder in patients with rheumatoid arthritis. Clin Exp Rheumatol 40: 1330-1335, 2022.","DOI":"10.55563\/clinexprheumatol\/lgfbtq"},{"key":"12","doi-asserted-by":"publisher","unstructured":"12. Mariette X, Cazals-Hatem D, Warszawki J, Liote F, Balandraud N, Sibilia J. Lymphomas in rheumatoid arthritis patients treated with methotrexate: a 3-year prospective study in France. Blood 99: 3909-3915, 2002.","DOI":"10.1182\/blood.V99.11.3909"},{"key":"13","doi-asserted-by":"crossref","unstructured":"13. Grywalska E, Markowicz J, Grabarczyk P, Pasiarski M, Roli\u0144ski J. Epstein-Barr virus-associated lymphoproliferative disorders. Postepy Hig Med Dosw (Online) 67: 481-490, 2013.","DOI":"10.5604\/17322693.1050999"},{"key":"14","unstructured":"14. Takasumi M, Okai K, Asano T, et al. 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Ultrasound-guided fine-needle biopsy of focal liver lesions: techniques, diagnostic accuracy and complications. A retrospective study on 2091 biopsies. J Hepatol 11: 344-348, 1990.","DOI":"10.1016\/0168-8278(90)90219-H"},{"key":"22","doi-asserted-by":"crossref","unstructured":"22. Kurosaki M. [Analysis of fatal cases related to liver biopsy]. Nihon Naika Gakkai Zasshi (J Jpn Soc Intern Med) 110: 1516-1519, 2021 (in Japanese).","DOI":"10.2169\/naika.110.1516"},{"key":"23","doi-asserted-by":"crossref","unstructured":"23. Miyazaki T, Fujimaki K, Shirasugi Y, et al. Remission of lymphoma after withdrawal of methotrexate in rheumatoid arthritis: relationship with type of latent Epstein-Barr virus infection. Am J Hematol 82: 1106-1109, 2007.","DOI":"10.1002\/ajh.21003"},{"key":"24","doi-asserted-by":"crossref","unstructured":"24. Kuge H, Yoshikawa S, Masuda T, et al. A case of methotrexate-associated lymphoproliferative disorders of anorectal lesion. 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