AmoxicillinAmoxicillin-Potassium Clavulanate CombinationClavulanic AcidClavulanic AcidsAnti-Bacterial Agentsbeta-LactamasesPenicillinsMicrobial Sensitivity Testsbeta-LactamsPenicillanic AcidSulbactamDrug Therapy, CombinationOtitis MediaClarithromycinbeta-Lactam ResistanceAmpicillinTicarcillinDrug Resistance, BacterialMetronidazoleStreptococcus pneumoniaeHaemophilus influenzaePenicillin ResistanceCefuroximeCephalosporinsLactamsHelicobacter pyloriAzithromycinPiperacillinHelicobacter InfectionsActinomycetaceaeOmeprazoleCefotaxime2-PyridinylmethylsulfinylbenzimidazolesThienamycinsEnterobacteriaceaeCommunity-Acquired InfectionsCephalosporinaseBacteria, AnaerobicDrug Resistance, MicrobialRespiratory Tract InfectionsBronchitis, ChronicMoraxella (Branhamella) catarrhalisAnti-Infective AgentsAnti-Ulcer AgentsDrug Resistance, Multiple, BacterialHaemophilus InfectionsEnterobacteriaceae InfectionsLansoprazoleBacterial InfectionsAmdinocillinFurazolidoneKlebsiella pneumoniaeCephalosporin ResistancePneumonia, PneumococcalAdministration, OralUrinary Tract InfectionsRabeprazoleGram-Negative BacteriaDrug CombinationsPneumonia, BacterialAcute DiseaseKlebsiellaCeftazidimeBismuthDouble-Blind MethodTreatment OutcomeCefaclorIsoelectric FocusingStenotrophomonas maltophiliaProton Pump InhibitorsEscherichia coliDrug Administration ScheduleDrug SynergismSpainTetracyclinePneumococcal InfectionsLevofloxacinOtitis Media with EffusionTonsillitisBacteriaPenicillin VAza CompoundsCyclacillinCefiximeEnzyme InhibitorsOfloxacinKlebsiella InfectionsProbenecidEscherichia coli InfectionsPenicillin-Binding ProteinsSuspensionsDuodenal UlcerPenicillin GTinidazoleRanitidineColony Count, MicrobialKineticsTuberculosis, Multidrug-ResistantPeptic UlcerDNA, Bacterial