“Determination of the Incidence of Ascaris Suum in Backyard Pigs from the Municipality of Pasaquina, Department of La Unión”. Revista de Investigación UNIVO 1, no. 14 (July 2, 2025): 52–60. Accessed November 6, 2026. https://revista.univo.edu.sv/index.php/investigacion/article/view/56.