title: Recurrent infections in children with "selective" IgA deficiency: association with IgG2 and IgG4 deficiency.
mesh_terms: D002648:Child; D002675:Child, Preschool; D004406:Dysgammaglobulinemia / Q000276:immunology*; D005260:Female; D006801:Humans; D017098:IgA Deficiency; D017099:IgG Deficiency; D007070:Immunoglobulin A / Q000032:analysis; D007074:Immunoglobulin G / Q000032:analysis; D007239:Infections / Q000276:immunology*; D008297:Male; D012008:Recurrence
chemical_list: D007070:Immunoglobulin A; D007074:Immunoglobulin G