Walia, K and Ghosh, S and Singh, H and Nair, G B and Ghosh, A and Sahni, Girish and Vohra, H and Ganguly, N K  (1999) Purification and characterization of novel toxin produced by Vibrio cholerae O1.  Infection and immunity, 67 (10).  pp. 5215-22.  ISSN 0019-9567