H. Peidro-Guzmán, K. Marrero-Domínguez, T. Ledón-Pérez, and R. Fando-Calzada, “Development of a PCR assay to detect cholera toxin genes (ctxAB) in preparations of attenuated live vaccine candidate against cholera CV638”, VM, vol. 25, no. 2, pp. 30-36, Sep. 2016.