[The frequently ill child (transient hypogammaglobulinemia)].
D000361:Agammaglobulinemia / Q000150:complications*; D002675:Child, Preschool; D004198:Disease Susceptibility; D005260:Female; D006801:Humans; D007239:Infections / Q000209:etiology / Q000276:immunology*
Casto nemocné dítĕ (tranzitorní hypogamaglobulinémie).