Rivera Anaya, J. D., C. M. Berrocal, and G. Rosado Carbó. “Antibody Titers of Dairy Heifers Following Vaccination With a Staphylococcal Toxoid”. The Journal of Agriculture of the University of Puerto Rico, vol. 49, no. 1, Jan. 2022, pp. 88-98, doi:10.46429/jaupr.v49i1.13011.