Aim: Regional reference values of immunoglobulin and immunoglobulin subgroups are necessary for clinical research and diagnosis. A main problem in determining the reference intervals, reference values show variability depending on laboratory and technical conditions against interregional and reference populations. In clinical laboratories mainly test kit's reference intervals are used according to the manufacturer. In this study it is aimed to determine reference interval values of regional immunoglobulin and IgG subgroups
