Psychology 182 Psychotherapy 118 Psychological aspects 115 Research 53 Treatment 50 Mental health 39 Periodicals 34 Methodology 32 Psychologists 30 History 27 Prevention 25 Cognitive therapy 22 Moral and ethical aspects 22 Professional ethics 21 psychology 21 Clinical psychology 20 Social aspects 20 Post-traumatic stress disorder 19 Psychotherapist and patient 19 Social psychology 19 Study and teaching 19 methods 19 Older people 18 Psychotherapists 18 Counseling 17 Psychic trauma 16 Family psychotherapy 15 Mental illness 15 Counseling of 14 Developmental psychology 14