Fig. 4From: Effect of specimen type on free immunoglobulin light chains analysis on the Roche Diagnostics cobas 8000 analyzerStability of free light chain measurements at different storage conditions. The plot shows the percent change relative to initial analysis for kappa (a, b) and lambda (c, d) measurements using EDTA-plasma and lithium heparin plasma separator tube (PST) specimensBack to article page