AtenololPropanolaminesAdrenergic beta-AntagonistsAdrenergic beta-1 Receptor AntagonistsMetoprololPropranololHeart RateAntihypertensive AgentsDelivery of Health CareBetaxololPindololHealth PersonnelHypertensionDouble-Blind MethodBlood PressureBendroflumethiazideClinical Trials as TopicHydrochlorothiazideCeliprololOxprenololButoxamineAcebutololReceptors, Adrenergic, betaHealthcare DisparitiesNifedipineHealth Care CostsUnited States Agency for Healthcare Research and QualityNadololLabetalolAmlodipineDrug Therapy, CombinationDoxazosinUnited StatesPhysical ExertionRandom AllocationPulseReceptors, Adrenergic, beta-1