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Purpose : People who suffer from chronic or recurrent respiratory disease have immunoglobulin
deficiency due to hypofunction of B cell. Among these immunoglobulin deficiency, it has been
reported that only one or two subclass of IgG are deficient with normal quantity of IgG and
IgA. Therefore it is necessary to measure IgG subclasses in chronic or recurrent respiratory
infection for diagnosis. The purpose of... |
