title: Emergence of extensive drug resistance during treatment for multidrug-resistant tuberculosis.
authors.forename: Helen S
authors.initials: HS
authors.lastname: Cox
authors.forename: Katia
authors.initials: K
authors.lastname: Sibilia
authors.forename: Silke
authors.initials: S
authors.lastname: Feuerriegel
authors.forename: Stobdan
authors.initials: S
authors.lastname: Kalon
authors.forename: Jonny
authors.initials: J
authors.lastname: Polonsky
authors.forename: Atadjan K
authors.initials: AK
authors.lastname: Khamraev
authors.forename: Sabine
authors.initials: S
authors.lastname: Rüsch-Gerdes
authors.forename: Clair
authors.initials: C
authors.lastname: Mills
authors.forename: Stefan
authors.initials: S
authors.lastname: Niemann
mesh_terms: D000704:Analysis of Variance; D000995:Antitubercular Agents / Q000627:therapeutic use*; D003428:Cross Infection; D054908:Extensively Drug-Resistant Tuberculosis; D006801:Humans; D008826:Microbial Sensitivity Tests; D009169:Mycobacterium tuberculosis / Q000187:drug effects* / Q000235:genetics; D015242:Ofloxacin / Q000627:therapeutic use; D012008:Recurrence; D018088:Tuberculosis, Multidrug-Resistant / Q000188:drug therapy*
chemical_list: D000995:Antitubercular Agents; D015242:Ofloxacin