Ibarra-Gámez, JC, et al. “Distribution of Necrotizing Hepatopancreatitis Bacterium (NHPB) in Cultured White Shrimp, Litopenaeus Vannamei, from Mexico”. Ciencias Marinas, vol. 33, no. 1, Mar. 2007, pp. 1-9, doi:10.7773/cm.v33i1.1044.