This is to certify that K. Chandrasekar & R. Kannan has published Research article entitled " A SHOCK MODEL APPROACH FOR ESTIMATING THE EXPECTED TIME TO SEROCONVERSION OF HIV INFECTED USING EXPONENTIATED MODIFIED WEIBULL DISTRIBUTION " in Asia pacific Journal of research (A Peer Reviewed International Journal), Vol - 1 Issue - XXXI, , pp: 147-153.

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