Characterization of the embB gene in Mycobacterium tuberculosis isolates from Barcelona and rapid detection of main mutations related to ethambutol resistance using a low-density DNA array—authors' response. - Moure, Raquel; Español, Montserrat; Tudó, Griselda; Vicente, Eva; Coll, Pere; Gonzalez-Martin, Julian; Mick, Virginie; Salvadó, Margarita; Alcaide, Fernando (The Journal of antimicrobial chemotherapy, 2014)