Quality assessment of sputum for Acid Fast Bacilli(AFB) test in microbiology laboratories before and after implementation of Standard Operating Procedure (SOP): a comparative study. Bangladesh J Med Sci [Internet]. 2012 Feb. 14 [cited 2026 Jun. 27];11(1):51-6. Available from: https://banglajol.info/index.php/BJMS/article/view/9824