The Commission is hereby designated as the agency of the State responsible for and having authority for the administration and operation of the program of the services for children as stated in Section 5 of this Act,¹ and to supervise generally the administration of any services related to this program but not administered directly under the Commission. The purposes of this program shall include the development, extension and improvement of services for locating such children and for providing medical, dental, corrective and other services and care, and facilities for diagnosis, hospitalization, treatment and aftercare.