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Clinical Trials as TopicBreakthrough PainRadionuclide GeneratorsTreatment OutcomeClinical Trials, Phase III as TopicClinical Trials, Phase II as TopicDouble-Blind MethodClinical Trials, Phase I as TopicResearch DesignControlled Clinical Trials as TopicLamivudineAdministration, BuccalNeoplasmsTime FactorsChickenpoxDrug Therapy, CombinationAntiviral AgentsRandomized Controlled Trials as TopicRespiratory Protective DevicesFentanylPatient SelectionMetrorrhagiaFungemiaHepatitis B, ChronicProspective StudiesFollow-Up StudiesDrug Administration ScheduleEpicardial MappingMulticenter Studies as TopicLevonorgestrelPlacebosClinical Trials Data Monitoring CommitteesAntineoplastic AgentsAnalgesics, OpioidHistory, 20th CenturyAntifungal AgentsClinical Trials, Phase IV as TopicBody Surface Potential MappingGastric Acidity DeterminationClinical ProtocolsRecurrenceOrganophosphonatesPainUnited StatesTreatment FailureHistory, 21st CenturyDrug Resistance, ViralHepatitis B e AntigensTherapeuticsPrecipitating FactorsChemopreventionAdministration, OralSingle-Blind MethodCharcoalBiomedical ResearchContraceptive Agents, FemaleLabor PainEarly Termination of Clinical TrialsRetrospective Studies2-PyridinylmethylsulfinylbenzimidazolesIntrauterine Devices, MedicatedCross-Over StudiesGastric AcidRisk FactorsUnited States Food and Drug AdministrationEchinocandinsDose-Response Relationship, DrugAdeninePain MeasurementMycosesZygomycosisOmeprazoleHistory, 19th CenturySlovakiaSeverity of Illness IndexTriazolesHepatitis B virusHeart Conduction SystemSample SizeGloves, ProtectiveAnti-Ulcer AgentsUterine HemorrhageDrug IndustryQuality of LifePilot ProjectsHistory, 17th CenturyBabesia bovisCandidiasisResearch SubjectsReverse Transcriptase InhibitorsDisease ProgressionTrichosporonosisDrug SubstitutionHIV InfectionsVaginal Creams, Foams, and JelliesReproducibility of ResultsQuestionnairesIridiumVesico-Ureteral RefluxNeutropenia