investigations by electron microscopy on thin sections and negative-stained preparations were carried out to show the effect of 6- [ ( r ) -2- [ 3-methylsulfonyl-2-oxo-imidazolidine-1-carboxamido ] -2-phenyl-acetamido ] -penicillanic acid sodium salt ( mezlocillin , baypen ) on the ultrastructures of gramnegative bacteria ( escherichia coli c 165 ) .
C0025893
mezlocillin
C0701901
baypen