efficiency

... Medical inspections of prisoners of war shall be held at least once a month. They shall include the checking and the recording of the weight of each prisoner of war. Their purpose shall be, in particular, to supervise the general state of health, nutrition and cleanliness of prisoners and to detect contagious diseases, especially tuberculosis, malaria and venereal disease. For this purpose the most efficient methods available shall be employed, e.g. periodic mass miniature radiography for the early detection of tuberculosis. ...

... Upon the outbreak of a conflict and in all cases of occupation, each of the Parties to the conflict shall institute an official Information Bureau for prisoners of war who are in its power. Neutral or non-belligerent Powers who may have received within their territory persons belonging to one of the categories referred to in Article 4, shall take the same action with respect to such persons. The Power concerned shall ensure that the Prisoners of War Information Bureau is provided with the necessary accommodation, equipment and staff to ensure its efficient working. It shall be at liberty to employ prisoners of war in such a Bureau under the conditions laid down in the Section of the present Convention dealing with work by prisoners of war. ...