RT Journal Article SR Electronic T1 A single Xpert MTB/RIF test of sputum for diagnosis of tuberculosis and multidrug resistance shows high sensitivity and specificity and reduces diagnosis and treatment delays JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 174 OP 175 DO 10.1136/ebm.2011.100207 VO 16 IS 6 A1 Annelies Van Rie YR 2011 UL http://ebm.bmj.com/content/16/6/174.abstract AB