Wierzba TF, Kar SK, Mogasale VV, Kerketta AS, You YA, Baral P, Khuntia HK, Ali M, Kim YH, Rath SB, Bhattachan A, Sah B. Effectiveness of an oral cholera vaccine campaign to prevent clinically-significant cholera in Odisha State, India. Vaccine. 2015 May 15; 33(21):2463-9.