Moreno H., J., Fernández A., V., Chipayo G., Y., & Crespo P., A. (2009). REFERENCE VALUES OF LACRIMAL PRODUCTION THROUGH THE SCHIRMER TEST IN CANINES IN A VETERINARY CLINIC IN LIMA CITY. Revista De Investigaciones Veterinarias Del Perú, 20(2), 249-253. https://doi.org/10.15381/rivep.v20i2.618