Fig. 4
From: Laboratory evaluation of a new integrative assay to phenotype plasma fibrinolytic system
Stability of controls (A, B, C) and reagents (D) kept aliquoted and frozen. UCL: Upper control limit (m + 3 SD); UWL: Upper warning limit (m + 2 SD); CL: Central line (m); LWL: Lower warning limit (m – 2 SD); LCL: Lower control limit (m + 3 SD). D0-D43 represents the whole 43 days-period; D0-D30 represents the first 30 days (given as the limit by the manufacturer); and D31-D43 represents the last 13 days (extended period)