%0 Journal Article %1 Roost1995 %A Roost, H P %A Bachmann, M F %A Haag, A %A Kalinke, U %A Pliska, V %A Hengartner, H %A Zinkernagel, RM %D 1995 %E Sci, Proc Natl Acad %J Proc Natl Acad Sci %K klainke %N 5 %P 1257-1261 %T Early high-affinity neutralizing anti-viral IgG responses without further overall improvements of affinity %U http://www.ncbi.nlm.nih.gov/pubmed/7877965 %V 92