[DURATION OF ACTIVE ANTIDIPHTHERIAL IMMUNITY STUDIED WITH THE SCHICK REACTION IN CHILDREN].
D002648:Child; D004165:Diphtheria; D006801:Humans; D007109:Immunity; D007110:Immunity, Active; D007223:Infant; D012106:Research; D012882:Skin Tests
DIPHTHERIA; IMMUNITY; INFANT; SKIN TESTS
DURATA DELL'IMMUNIT'A ATTIVA ANTIDIFTERICA RICERCATA CON LA REAZIONE DI SCHICK NEI BAMBINI.