immunoglobulin G subclass deficiency

im·mu·no·glob·u·lin G sub·class de·fi·cien·cy

a rare inherited disorder in which there are reduced levels of one or more IgG subclasses resulting from defective heavy chain genes or an abnormality in the regulation of immunoglobulin isotype switching.
References in periodicals archive ?
Best et al., "Immunoglobulin G subclass deficiency and infection risk in 150 patients with chronic lymphocytic leukemia," Leukemia & Lymphoma, vol.
Cherif, "Clinical significance of serum immunoglobulin G subclass deficiency in patients with chronic lymphocytic leukemia," Scandinavian Journal of Infectious Diseases, vol.
Buckley, "Immunoglobulin G subclass deficiency: fact or fancy?" Current Allergy and Asthma Reports, vol.
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