The antigenicity and evolution of influenza H1 haemagglutinin, from 1950-1957 and 1977-1983: two pathways from one gene.
The antigenicity and evolution of influenza H1 haemagglutinin, from 1950-1957 and 1977-1983: two pathways from one gene. Virology. 1986 Jan 30; 148(2):275-87.