A study of the formation of zones of pH change and zones of apparent stimulation of growth by E. coli and S. typhosa upon bacteriological testing of some glycerin-containing ointments.
D001419:Bacteria; D004926:Escherichia coli; D005990:Glycerol; D009824:Ointments; D018892:Proton-Motive Force
D009824:Ointments; D005990:Glycerol
BACTERIA; OINTMENTS