title: The buddy system: relationship and contingency conditions in a community intervention program for youth with nonprofessionals as behavior change agents.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000488:Allied Health Personnel / Q000706:statistics & numerical data*; D001521:Behavior Therapy; D002648:Child; D002653:Child Behavior Disorders / Q000628:therapy*; D003156:Community Mental Health Services; D005260:Female; D006801:Humans; D007398:Interpersonal Relations; D008297:Male; D008875:Middle Aged