Youth development Services for 198 Youth 159 Adolescence 66 Teenagers 37 Parent and teenager 35 Substance use 20 more ... Health risk assessment 16 Prevention 16 Psychological aspects 16 Parent and child 15 Parenting 15 Resilience (Personality trait) in adolescence 13 Sexual behavior 13 Sexual minority youth 13 Treatment 13 Child rearing 12 Homeless youth 11 Interpersonal relations in adolescence 10 Problem youth 10 Social conditions 10 Family relationships 9 Psychology 9 Stress management for teenagers 9 Chronically ill 8 Mindfulness (Psychology) 8 Behavioral assessment of teenagers 7 Chronic diseases in adolescence 7 Mass media and youth 7 Medical care 7 less ...