[1] Nepal Hlth Frontiers, Tokha-5, Kathmandu, Nepal
[2] Univ Connecticut, Dept Allied Hlth Sci, Unit 1101,358 Mansfield Rd, Storrs, CT 06269 USA
[3] Blue Diamond Soc, Kathmandu, Nepal
[4] Inst Med, Dept Radiol, Kathmandu, Nepal
[5] Yale Sch Med, Dept Internal Med, Sect Infect Dis, 135 Coll St,Suite 323, New Haven, CT 06510 USA
[6] Univ Pittsburgh, Dept Infect Dis & Microbiol, Pittsburgh, PA 15261 USA