There is also vested in the Philippine Health Service a power of visitation and inspection over all hospitals and institutions for the treatment or care of sick, infirm, indigent, or disabled persons, to be exercised so far as may be necessary to secure th e proper treatment and sanitary protection of their inmates. aTEHCc The Philippine Health Service shall also exercise a general supervisory authority over institutions and persons in whom the Director of Health may by contract confide the treatment or care of those who should be maintained or assisted from funds appropriat ed for the Philippine Health Service, so far as such supervision may be necessary for the enforcement of any such contract and the protection of the persons so confided to them. SECTION  842 . Subsistence and Quarters for Employees in Hospital Service. —  Upon direction of the Director of Health, medical officers and employees rendering services in hospitals controlled by the Philippine Health Service shall be furnished subsistence,  quarters, and laundry in kind at the expense of the hospital or other institution where said medical officer or employee may be assigned to duty. [2122.] SECTION  843 . Ministration to Indigent Poor. —  It shall be incumbent upon the Philippine Health Service, as funds may be available therefor, to provide for the proper care and medical treatment of poor people in clinics, hospitals, or otherwise. [2319-1 (Bur. Health).] SECTION  844 . Free Medical Service — How Rendered. —  District health officers shall, when practicable, render, or cause to be rendered by the local health officers of the respective municipalities of their several districts, such medical service as may be r equired for Insular, provincial, and municipal prisoners or other persons entitled to free medical service therein. CcAESI In the city of Manila and other places accessible to the Philippine General Hospital or hospitals or clinics supported by the Philippine Health Service the free medical service may be rendered through such agencies or through other agencies provided for by  law or regulation. [985-5; 1487-12, 14.] SECTION  845 . Duty of Medical Officers of Other Bureaus to Render Medical Service.  — Where a physician of the Philippine Health Service or other 261 Copyright 2012 CD Technologies Asia, Inc. and Accesslaw, Inc. Philippine Law Encyclopedia 2011