Global Co-Existence of Two Evolutionary Lineages of Parvovirus B19 1a, Different in Genome-Wide Synonymous Positions Molenaar-de Backer, Marijke W. A. ; Lukashov, Vladimir V. ; van Binnendijk, Rob S. ; Boot, Hein J. ; Zaaijer, Hans L. Abstract Publication: PLoS ONE Pub Date: August 2012 DOI: 10.1371/journal.pone.0043206 Bibcode: 2012PLoSO...743206M