[1] Natl Ctr Communicable Dis, TB Clin, Ulaanbaatar, Mongolia
[2] Natl Ctr Communicable Dis, TB Surveillance & Res Dept, Ulaanbaatar, Mongolia
[3] Natl Ctr Communicable Dis, Natl TB Reference Lab, Ulaanbaatar, Mongolia
[4] Mongolian Natl Univ Med Sci, Sch Med, Dept Pulmonol & Allergy, Ulaanbaatar, Mongolia