RT Journal Article SR Electronic T1 Quinolones to treat acute bacterial exacerbation of chronic bronchitis in TB endemic areas: a word of caution JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 1233 OP 1233 DO 10.1183/09031936.00070407 VO 30 IS 6 A1 A. Singh YR 2007 UL http://erj.ersjournals.com/content/30/6/1233.abstract AB