👤 Chang, Pei W. Keywords 🔗 bronchitis virus (233) 🔗 highly pathogenic (100) 🔗 viral proteins (89) 🔗 structural proteins (197) 🔗 infectious bronchitis (235) Articles (1) Protein pI alteration related to strain variation of infectious bronchitis virus, an avian Coronavirus 👤 Sadasiv, Eileen C. 👤 Yeh, Tamson T. 👤 Chang, Pei W. ⏰ 1991 📚 Journal of Virological Methods