Flores-Somarriba, Byron José, et al. “Keratoconjunctivitis Sicca in Canines of a Neighborhood in Managua City”. Rev. Iberoam. Bioecon. Cambio Clim., vol. 6, no. 12, Nov. 2020, pp. 1481-7, doi:10.5377/ribcc.v6i12.10039.