The use of non-professional change agents in an institution.
D000359:Aftercare; D000488:Allied Health Personnel / Q000193:education / Q000706:statistics & numerical data*; D003156:Community Mental Health Services; D003419:Crisis Intervention; D004636:Emergency Service, Hospital; D006769:Hospitals, General; D006784:Hospitals, Teaching; D006801:Humans; D009864:Ontario; D019966:Substance-Related Disorders / Q000628:therapy*