10Walory J, Grzesiowski P, Hryniewicz W. Comparison of four serological methods for the detection of diphtheria anti-toxin antibody. J Immunoi Methods, 2000,245 (1-2) : 55-65.
3Murhekar MV, Bitragunta S, Hutin Y, et al. Immunization coverage and immunity to diphtheria and tetanus among children in Hyderabad, India[J]. J Infect, 2009, 58(3): 191-196.