[1] Natl Univ Singapore, TB Res Lab, Dept Microbiol, Yong Loo Lin Sch Med,Natl Univ Hlth Syst, Singapore 117545, Singapore
[2] Natl Univ Singapore, Antibacterial Drug Discovery Lab, Dept Microbiol, Yong Loo Lin Sch Med,Natl Univ Hlth Syst, Singapore 117545, Singapore