{Reference Type}: Journal Article {Title}: Selective IgG2-deficiency in yellow nail syndrome. {Author}: Tessier S;Longo S;Ido F; {Journal}: Respirol Case Rep {Volume}: 11 {Issue}: 3 {Year}: Mar 2023 暂无{DOI}: 10.1002/rcr2.1102 {Abstract}: IgG2-deficiency increases susceptibility to recurrent pulmonary infections and the risk for bronchiectasis. Isolated IgG2-deficiency has not been previously described in Yellow Nail Syndrome (YNS).