title: Pneumococcal osteomyelitis associated with IgG2 subclass deficiency.
mesh_terms: D004406:Dysgammaglobulinemia / Q000150:complications*; D006801:Humans; D017099:IgG Deficiency; D007223:Infant; D008297:Male; D010019:Osteomyelitis / Q000209:etiology*; D011008:Pneumococcal Infections / Q000209:etiology*