Selective subnormal IgG3 in 121 adult index patients with frequent or severe bacterial respiratory tract infections
Keywords: عفونت دستگاه تنفسی; Allergy; Atopy; Autoimmunity; Human leukocyte antigen (HLA); IgG3; IgG subclass deficiency (IgGSD); IgG3 deficiency; Pneumovax; Respiratory tract infections;