RT Journal Article SR Electronic T1 Diagnostic accuracy of three morning sputum versus standard sputum smears for pulmonary tuberculosis JF Journal of Investigative Medicine JO J Investig Med FD BMJ Publishing Group Ltd SP e5 OP e5 DO 10.1136/jim-2018-000724 VO 66 IS 6 A1 Ya-Ning Wang A1 Chao Han A1 Jun-Ling Wang A1 Mao-Shui Wang A1 Jun-Li Wang YR 2018 UL http://hw-f5-jim.highwire.org/content/66/6/e5.abstract AB