Williams, P. P.P. P.WilliamsSacks, J. M.J. M.Sacks楊平政Pirtle, E. C.E. C.PirtleYang, P. C.P. C.Yang2009-02-132018-07-092009-02-132018-07-091990http://ntur.lib.ntu.edu.tw//handle/246246/131656en-USImmunological Surveillance in a Pseudorabies Quarantined Herd Using Gilts and Their Progeny as Sentinelsjournal article