Fig. 1
From: The natural course of hereditary angioedema in a Chinese cohort
The natural course of HAE over the seventy years. Score first episode (F) and exacerbation stage (E) 3 points, stable stage (S) 2 points, silent stage (O) and remission stage (R) 1 point. Distribution of the patients with different HAE progression types at each age stage was shown by cluster bar. The line reflected the changes of weighted average over the seventy years