PravastatinHydroxymethylglutaryl-CoA Reductase InhibitorsAnticholesteremic AgentsHeptanoic AcidsHypercholesterolemiaSimvastatinPyrrolesPhysiciansMedical Staff, HospitalFosinoprilLovastatinPhysician-Patient RelationsCholesterolCholesterol, LDLFluorobenzenesAttitude of Health PersonnelFatty Acids, MonounsaturatedFamily PracticePhysician ImpairmentPhysiological ProcessesMevalonic AcidGreat BritainLipidsOrganic Anion TransportersDouble-Blind MethodQuestionnairesClinical Competence