Snyder, M. H., Clements, M. L., De Borde, D., Maassab, H. F., & Murphy, B. R. (1985). Attenuation of wild-type human influenza A virus by acquisition of the PA polymerase and matrix protein genes of influenza A/Ann Arbor/6/60 cold-adapted donor virus.

Snyder, M H., M L. Clements, D. De Borde, H F. Maassab, e B R. Murphy. Attenuation of Wild-type Human Influenza A Virus By Acquisition of the PA Polymerase and Matrix Protein Genes of Influenza A/Ann Arbor/6/60 Cold-adapted Donor Virus. 1985.

Snyder, M H., et al. Attenuation of Wild-type Human Influenza A Virus By Acquisition of the PA Polymerase and Matrix Protein Genes of Influenza A/Ann Arbor/6/60 Cold-adapted Donor Virus. 1985.