Youth Services for 180 Youth development 132 Political activity 32 History 28 African Americans 27 Civil rights 26 更多 ... Civil rights movements 26 Civil rights workers 26 Adolescence 20 Substance use 19 Prevention 17 Treatment 17 Health risk assessment 14 Parent and teenager 13 Civil rights demonstrations 12 Medical personnel and patient 11 Sexual behavior 11 Communication in medicine 9 Diagnosis 9 Mindfulness (Psychology) 9 Chronically ill 8 Medical care 8 Behavioral assessment of teenagers 7 Resilience (Personality trait) in adolescence 7 Social conditions 7 Stress management for teenagers 7 Substance abuse 7 Adolescent psychology 6 Cultural competence 6 少 ...