Assertion: virus | /r/HasProperty | visualized with new high resolution technology
Facets:
value: according to a 2009 article
type: OTHER
Source sentences:
text: According to a 2009 article published in the journal Clinical Microbiology Reviews, once the electron microscope was developed in 1931 by German scientists Ernst Ruska and Max Knoll, the first virus could be visualized with the new high resolution technology.