RT Journal Article SR Electronic T1 Trends of multidrug-resistant tuberculosis clustering in Portugal JF ERJ Open Research JO erjor FD European Respiratory Society SP 00151-2018 DO 10.1183/23120541.00151-2018 VO 5 IS 1 A1 Rita Macedo A1 Raquel Duarte YR 2019 UL http://openres.ersjournals.com/content/5/1/00151-2018.abstract AB