title: TUBERCULIN SKIN TESTING IN SECONDARY SCHOOLS IN BALTIMORE COUNTY, MARYLAND. OPERATION SKIN TEST.
mesh_terms: D000293:Adolescent; D015142:Baltimore; D001699:Biometry; D006801:Humans; D008396:Maryland; D011637:Public Health Nursing; D013902:Radiography, Thoracic; D012572:School Health Services; D012574:Schools; D012882:Skin Tests; D013223:Statistics as Topic; D014373:Tuberculin; D014374:Tuberculin Test
chemical_list: D014373:Tuberculin
keywords: ADOLESCENCE; MARYLAND; PUBLIC HEALTH NURSING; SCHOOL HEALTH; STATISTICS; THORACIC RADIOGRAPHY; TUBERCULIN TEST