PT - JOURNAL ARTICLE AU - Nauman Safdar AU - Kamran Siddiqi TI - Two sputum samples at once for diagnosis of tuberculosis in Africa has equivalent sensitivity and specificity to the standard initial sample followed by a morning sample strategy AID - 10.1136/ebm.2011.100197 DP - 2011 Dec 01 TA - Evidence Based Medicine PG - 173--174 VI - 16 IP - 6 4099 - http://ebm.bmj.com/content/16/6/173.short 4100 - http://ebm.bmj.com/content/16/6/173.full SO - Evid Based Med2011 Dec 01; 16