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Eosinophil cationic protein (ECP) concentration before (V1) and during therapy (V4), and at 3 (V5) and 6 months (V6) after the last IVIg injection. The ECP concentration was significantly lower (P < 0.05) at the 3-month follow-up visit (V5) compared with the concentration at V1, but it had increased significantly by the 6-month follow-up visit (V6).
