Comment on

• Clinical and operational value of the extensively drug-resistant tuberculosis definition.

  Migliori GB, Besozzi G, Girardi E, Kliiman K, Lange C, Toungoussova OS, Ferrara G, Cirillo DM, Gori A, Matteelli A, Spanevello A, Codecasa LR, Raviglione MC; SMIRA/TBNET Study Group. Migliori GB, et al. Eur Respir J. 2007 Oct;30(4):623-6. doi: 10.1183/09031936.00077307. Epub 2007 Aug 9. Eur Respir J. 2007. PMID: 17690121
• Resistance to second-line injectables and treatment outcomes in multidrug-resistant and extensively drug-resistant tuberculosis cases.

  Migliori GB, Lange C, Centis R, Sotgiu G, Mütterlein R, Hoffmann H, Kliiman K, De Iaco G, Lauria FN, Richardson MD, Spanevello A, Cirillo DM; TBNET Study Group. Migliori GB, et al. Eur Respir J. 2008 Jun;31(6):1155-9. doi: 10.1183/09031936.00028708. Eur Respir J. 2008. PMID: 18515555