LACK OF IMMUNIZATION AMONG ELEMENTARY SCHOOL CHILDREN. A STUDY CONDUCTED IN IOWA CITY.
D002648:Child; D006801:Humans; D007114:Immunization; D007484:Iowa; D012572:School Health Services; D012574:Schools; D013223:Statistics as Topic; D014611:Vaccination
CHILD; IOWA; SCHOOL HEALTH; STATISTICS; VACCINATION