title: IgG subclasses and their deficiencies.
authors.forename: R L
authors.initials: RL
authors.lastname: Hsiao
authors.forename: D C
authors.initials: DC
authors.lastname: Heiner
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D004406:Dysgammaglobulinemia / Q000276:immunology*; D005260:Female; D006801:Humans; D017099:IgG Deficiency; D007112:Immunity, Maternally-Acquired; D007074:Immunoglobulin G / Q000145:classification*; D007223:Infant; D008875:Middle Aged; D011247:Pregnancy
chemical_list: D007074:Immunoglobulin G