RT Journal Article SR Electronic T1 MDR-TB and XDR-TB: drug resistance and treatment outcomes JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 778 OP 779 DO 10.1183/09031936.00059409 VO 34 IS 3 A1 G. B. Migliori A1 G. Sotgiu A1 M. D'Arcy Richardson A1 R. Centis A1 A. Facchini A1 G. Guenther A1 A. Spanevello A1 C. Lange A1 for TBNET YR 2009 UL http://erj.ersjournals.com/content/34/3/778.abstract AB