CD79A and cirrhosis of liver: Dimeric to monomeric IgA ratio was first noted to be elevated in liver cirrhosis decades ago.20 Previously, the detection of the small fraction of dimeric IgA in plasma involved the use of complex techniques such gel filtration chromatography or density-gradient ultracentrifugation.33 We have developed a novel reagent that binds selectively to dIgA, enabling measurement of dIgA by a lateral flow POC test device.