Ribosomal and kDNA markers distinguish two subgroups of Herpetomonas among old species and new trypanosomatids isolated from flies - Teixeira, Marta Maria Geraldes; Takata, Carmem Silva de Almeida; Conchon, I; Campaner, Marta; Camargo, Erney Felício Plessmann de (Journal of Parasitology, 1997)