Aspects of the mental health care of children and adolescents are the focus of three articles in this month's issue. E. Michael Foster, Ph.D., and Tim Connor, M.S., studied how improving community mental health services for youths by use of a system-of-care approach affects public expenditures on services for children and adolescents provided by the juvenile justice system, the child welfare system, and the special education system. Among their conclusions was that the costs of improving community mental health services for youths are only partly offset by associated reduced expenditures in the other sectors (see page 50). David S. Mandell, Sc.D., and his coauthors, in response to concerns about observed increases in the number of children who are receiving diagnoses of neurodevelopmental disorders, studied trends in diagnosis rates for autism and attention-deficit hyperactivity disorder at hospital discharge in the context of other psychiatric diagnoses (see page 56). Finally, Kim D. Jaffee, Ph.D., M.S.W., and associates interviewed 257 low-income caregivers of children with special health care needs to assess the relationship of community-level stressors to behavioral and emotional problems among African-American and white children with such needs (see page 63).