[1] Aga Khan Univ Hosp, Dept Pathol & Lab Med, Sect Microbiol, Karachi, Pakistan
[2] Aga Khan Univ Hosp, Dept Pathol & Lab Med, Karachi, Pakistan
[3] Aga Khan Univ Hosp, Dept Pathol & Lab Med, Sect Hematol, Karachi, Pakistan
[4] Aga Khan Univ Hosp, Dept Pathol & Lab Med, Sect Histopathol, Karachi, Pakistan
[5] Aga Khan Univ Hosp, Dept Pathol & Lab Med, Microbiol, Karachi, Pakistan
[6] Aga Khan Univ Hosp, Karachi, Pakistan