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. 2011 Feb 1;2(4):287–292. doi: 10.1111/j.2040-1124.2011.00102.x

Figure 4.

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 (a) Annual changes of fasting serum C‐peptide level (F‐CP) in the type 2 diabetic patients without (non‐S20G‐T2D‐patients, n = 70) and those with the S20G mutation of the IAPP gene (S20G‐patients, n = 6). (b) Those who had 5‐min level of serum C‐peptide level after the intravenous injection of 1 mg glucagon (5′‐CP) in the 42 non‐S20G‐T2D‐patients and the four S20G‐patients. Individual values are shown as scatter plots and mean vales ± SD as columns, with statistical significance of the difference below columns. *P = 0.025, **P = 0.008 for the difference between the indicated groups. Individual annual decline was multiplied (−1) by the annual change.