Swarna S R, Srimathi N N, Madhavan Radha, Gomathi S
Department of Microbiology, SRM Medical College Hospital & Research Center (SRMMCH & RC), SRM University, Kattankulathur, Tamil Nadu 603 203, India.
Indian J Med Res. 2015 Apr;141(4):481-2. doi: 10.4103/0971-5916.159308.