acquiredimmunodeficiencysyndrome aids(disease) behaviormodification behaviortherapy counseling greatbritain healthbehavior interview mentalhealthcounseling methods motivation motivationalinterviewing patientcompliance patienteducation patienteducationastopic patientparticipation physicianandpatient primarycare(medicine) psychological psychologicalaspects psychology socialaspects wm425r754m2008 wm55e13c1995