A SCHICK TEST SURVEY IN LUDHIANA.
D002648:Child; D003140:Communicable Disease Control; D004165:Diphtheria; D006801:Humans; D007194:India; D007223:Infant; D008403:Mass Screening; D012572:School Health Services; D012882:Skin Tests
CHILD; COMMUNICABLE DISEASE CONTROL; DIPHTHERIA; INDIA; INFANT; MASS SCREENING; SCHOOL HEALTH; SKIN TESTS