Jorge, Max Augusto, José Di Fábio, Edir Nepomuceno da Silva, and Osmane Hipólito. 2014. “Vaccination of Broilers Against Chronic Respiratory Disease With the Conn. F Strain of Mycoplasma Gallisepticum”. Pesquisa Agropecuaria Brasileira 20 (8):917-20. https://doi.org/10.1590/S1678-3921.pab1985.v20.16037.