human 7 support group Humans 6 female 6 Article 5 controlled study 5 major clinical study 5 male 5 priority journal 5 Adult 3 Female 3 HIV Infections 3 Human immunodeficiency virus infection 3 adult 3 psychology 3 Behavior Therapy 2 HIV 2 Human immunodeficiency virus infected patient 2 Male 2 Middle Aged 2 Motivation 2 article 2 behavior therapy 2 clinical article 2 intervention study 2 middle aged 2 motivation 2 motivational interviewing 2 obesity 2 patient attendance 2