Reference/Citations:
Ref. Rotzschke O. et al. Nature 348, 252 (1990); Macken, C. et al. “The value of a database in surveillance and vaccine selection.” in Options for the Control of Influenza IV. A.D.M.E. Osterhaus, N. Cox & A.W. Hampson (Eds.) Amsterdam: Elsevier Sci. 103 (2001); Schwarze, J. et al. Am. J. Respir.