Assertion: vancomycin | /r/HasProperty | discovered in 1950
Facets:
Source sentences:
text: Vancomycin was first discovered from a soil sample in the interior jungle of Borneo in the 1950s, and its usage was very limited due to the presence of impurities that caused toxicities in the earlier preparations.
text: Vancomycin is an antibiotic medicine discovered in the 1950s, and is not one of the more common drugs prescribed.