( h ) He shall carry out, and when so directed, he shall supervise the work of vaccination and disinfection in his division. ( i ) He shall visit any house or place where any person is suffering or is dead of a dangerous, communicable disease and shall carry out the prescribed and other measures necessary to prevent the spread of such disease. He shall, whenever practicable, furni sh free medicines to indigent patients, and when requested he shall render, free of charge, medical services to all Government officers and employees, to all persons in custody, and to other person entitled to such service. (j) In the case of accidents or serious injuries received by an indigent person whose condition is such as not to allow of removal to the municipal building, he shall when requested afford free treatment at the person's own house or elsewhere. ( k ) He shall cooperate with the presidents of other sanitary divisions or other local health officers in the suppression of any epidemic. (l) He shall, when deputed by the district health officer, examine the bodies of persons who die without medical attendance in his division, and shall issue the necessary certificate of death. ( m ) He shall, once a year or more frequently if necessary, give in each of the barrios or other convenient areas of his sanitary division a public lecture in the local dialect, either directly or through an interpreter, on medical and sanitary subjects of  local importance. ( n ) He shall, whenever so directed by the district health officer, attend such conferences of presidents of sanitary divisions as the district health officer shall call. [2156-1, 3.] SECTION  821 . Place of Residence. — The president of a sanitary division shall reside in the place which, in the judgment of the district health officer, will afford the greatest facilities for the proper discharge of his duties.  [2156-2.] SECTION  822 . Sanitary Inspectors — Their Powers and Duties. —  Each municipality of a sanitary division shall have one or more sanitary inspectors, appointed by the provincial board on the recommendation of the district health 251 Copyright 2012 CD Technologies Asia, Inc. and Accesslaw, Inc. Philippine Law Encyclopedia 2011