Mass screening, Medical -- See Medical screening Here are entered works on mass examination of the population to detect the existence of a particular disease, as diabetes, tuberculosis, etc. --subdivision Medical examinations under topical headings, classes of persons, ethnic groups, and individual military services
Mass society -- See Also Popular culture Here are entered works on literature, art, music, motion pictures, etc. produced for a mass audience. General works on learning and scholarship, literature, the arts, etc. are entered under Intellectual life. --subdivision In popular culture under names of countries, cities, etc.