Fig. 1
From: Serum free IgE guided dose reduction of omalizumab: a case report
Changes in serum free and total IgE levels over time before and after omalizumab administration. Changes in serum free IgE (Black up-pointing triangle) and total IgE (Black square) levels are shown before commencing omalizumab (−1 week) to 172 weeks after beginning administration. The longitudinal axis represents the logarithmic expression of serum IgE levels