Attitude of Health PersonnelAttitude to HealthFocus GroupsPatient Acceptance of Health CareQualitative ResearchHealth Knowledge, Attitudes, PracticeQuestionnairesGreat BritainInterviews as TopicPhysician-Patient RelationsHealth Services AccessibilityPhysiciansDecision MakingPhysician's Practice PatternsFamily PracticeUnited StatesData CollectionTime FactorsAge FactorsHIV InfectionsCross-Sectional StudiesTreatment OutcomeRisk Factors