Davies, J. R., & Grilli, E. A. (1989). Natural or vaccine-induced antibody as a predictor of immunity in the face of natural challenge with influenza viruses. Cambridge University Press.

Davies, J. R., و E. A. Grilli. Natural or Vaccine-induced Antibody As a Predictor of Immunity in the Face of Natural Challenge With Influenza Viruses. Cambridge University Press, 1989.

Davies, J. R., و E. A. Grilli. Natural or Vaccine-induced Antibody As a Predictor of Immunity in the Face of Natural Challenge With Influenza Viruses. Cambridge University Press, 1989.