CyclacillinLactamsbeta-LactamsSuperinfectionAnti-Bacterial AgentsAminoglycosidesPenicillin ResistanceCyclizationalpha-MSHDrug Resistance, MicrobialDrug Resistance, BacterialHeterocyclic Compounds, 1-RingDrug ResistanceMuramic AcidsMicrobial Sensitivity TestsMolecular StructureRandomized Controlled Trials as TopicStereoisomerismStreptomycesAminationCleomeReceptors, MelanocortinDrug Resistance, NeoplasmAntibiotic ProphylaxisDrug Resistance, Multiple, BacterialDrug Resistance, Multiple