School certification program in Missouri.
D002568:Certification; D006801:Humans; D008403:Mass Screening / Q000379:methods*; D008923:Missouri; D012572:School Health Services; D014373:Tuberculin; D014374:Tuberculin Test; D014376:Tuberculosis; D014397:Tuberculosis, Pulmonary
D014373:Tuberculin
MASS SCREENING TECHNICS; SCHOOL HEALTH; TUBERCULIN REACTION; TUBERCULOSIS, PULMONARY