K. Y. W. Teo, Y. S. Keong, T. S. Wei, A. R. Omar, and N. B. Alitheen, “Relationship between Virus Replication and Apoptosis Events in IgM + Cells from Chicken Spleen and Bursa of Fabricius Infected with Malaysia Strain of Very Virulent Infectious Bursal Disease Virus”, Acta Scientiae Vet., vol. 44, no. 1, p. 9, Jan. 2016.