Rodulfo, Hectorina, Beatriz Ahmar, María Rodríguez, Leonor Mora, and Marcos De Donato. 2012. “Nested PCR Reveals Elevated over-Diagnosis of E. Histolytica in Barcelona, Venezuela.”. Investigación Clínica 53 (4). http://www.produccioncientificaluz.org/index.php/investigacion/article/view/28898.