Powell, J. G.; Richeson, J. T.; Kegley, E. B.; Coffey, K. P.; Erf, G. F.; Brown, A. H.; Downum, W.; Ensley, D. T. Immunologic, Health, and Growth Responses of Beef Calves Administered Pentavalent Modified-Live Virus Respiratory Vaccine in the Presence of Maternal Antibody Versus a Traditional Vaccination Regimen. Bov. pract. 2012, 46, 122-130.