1. Pathogenicity of avian influenza A viruses;Berry;Proc. R. Soc. Med.,1969
2. Combined viral and bacterial infection. An in vitro analysis of the population dynamics and factors influencing the enhancement of virulence of Hemophilus influenzae in combined infection with influenza virus in embryonated eggs;Buddinoh;Am. J. Pathol.,1966
3. Isolation and growth of mycoplasma in human embryo trachea cultures;Butler;Nature (Lond.),1969
4. Growth and cytopathogenicity of mycoplasma in human and chicken trachea explants;Butler;J. Comp. Pathol.,1971
5. Large quantity production of chicken embryo tracheal organ cultures and use in virus and mycoplasma studies;Cherry;Appl. Microbiol.,1970b