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RH, López-Llano J, Fuentes P, Valencia E, Zimic MJ: Effect of pyrazinamidase activity on pyrazinamide resistance in Mycobacterium tuberculosis. Tuberculosis (Edinb) 2009, 89:109–113.CrossRef Competing interests The authors declare that they have no competing interests. Authors’ contributions SF: Conception and design of the study, acquisition, analysis and interpretation of data, drafting and revising of the article, given final approval to this version to be published. BO: Conception Ergoloid and design of the study, revising of the article, given final approval to this version to be published. AGG: Conception and design of the study, revising of the article, given final approval to this version to be published. FD: Conception and design of the study, revising of the article, given final approval to this version to be published. ER: Conception and design of the study, interpretation of data, revising of the article, given final approval to this version to be published. SR-G: Conception and design of the study, interpretation of data, revising of the article, given final approval to this version to be published. SN: Conception and design of the study, interpretation of data, drafting and revising of the article, given final approval to this version to be published. All authors read and approved the final manuscript.”
“Background Ureaplasmas belong to the class Mollicutes.