title: Improved haemagglutinin antigen content in H5N1 candidate vaccine viruses with chimeric haemagglutinin molecules.
authors.affiliation: Division of Virology, National Institute for Biological Standards and Control, Health Protection Agency, Blanche Lane, Potters Bar, Hertfordshire EN6 3QG, United Kingdom.
authors.forename: Ruth
authors.initials: R
authors.lastname: Harvey
authors.forename: Carolyn
authors.initials: C
authors.lastname: Nicolson
authors.forename: Rachel E
authors.initials: RE
authors.lastname: Johnson
authors.forename: Kate A
authors.initials: KA
authors.lastname: Guilfoyle
authors.forename: Diane L
authors.initials: DL
authors.lastname: Major
authors.forename: James S
authors.initials: JS
authors.lastname: Robertson
authors.forename: Othmar G
authors.initials: OG
authors.lastname: Engelhardt