Molecular characterisation of <it>Galba truncatula</it>, <it>Lymnaea neotropica</it> and <it>L. schirazensis</it> from Cajamarca, Peru and their potential role in transmission of h... by Bargues M, Artigas Patricio, Khoubbane Messaoud, Ortiz Pedro, Naquira Cesar, Mas-Coma Santiago