title: A practical approach to office identification of the immunodeficient child.
mesh_terms: D002648:Child; D002675:Child, Preschool; D006801:Humans; D007111:Immunity, Cellular; D007136:Immunoglobulins / Q000172:deficiency; D007153:Immunologic Deficiency Syndromes / Q000150:complications / Q000175:diagnosis*; D007223:Infant; D007239:Infections / Q000150:complications; D010587:Phagocytosis; D012008:Recurrence; D012017:Referral and Consultation; D012698:Serologic Tests / Q000379:methods
chemical_list: D007136:Immunoglobulins