Use of a questionnaire to estimate children's susceptibility to measles.
D000328:Adult; D000367:Age Factors; D000906:Antibodies / Q000032:analysis; D002648:Child; D002675:Child, Preschool; D006306:Health Surveys; D006385:Hemagglutination Inhibition Tests; D006801:Humans; D007114:Immunization; D008457:Measles / Q000276:immunology*; D008487:Medical History Taking; D010290:Parents; D010414:Pennsylvania; D011153:Population; D012572:School Health Services; D011795:Surveys and Questionnaires
D000906:Antibodies