Historically, health and mental health services have been separated by a
variety of forces, including specialization; ideological, attitudinal, and
financial barriers; the professionalization of psychiatry; and functional
and organizational differentiation. Recently, several models of integration
and coordination have been proposed. If they are to succeed, health
planners will have to be aware of the essential ingredients of
interorganizational cooperation and work to eliminate the obstacles to
integration of health and mental health services.