Section 19. Integration of Local Health Systems into Province-wide and City-wide Health System.— The DOH, Department of the Interior and Local Government (DILG), PhilHealth and the LGUs shall endeavor to integrate health systems into province-wide and city-wide health systems. The Provincial and City Health Boards shall oversee and coordinate the integration of health services for province-wide and city-wide health systems, to be composed of municipal and component city health systems, and city-wide health systems in highly urbanized and independent component cities, respectively. The Provincial and City Health Boards shall manage the Special Health Fund referred to in Section 20 of this Act and shall exercise administrative and technical supervision over health facilities and health human resources within their respective territorial jurisdiction: Provided, That municipalities and cities included in the province-wide and city-wide health systems shall be entitled to a representative in the Provincial or City Health Board, as the case may be.