IFIH1 and Aicardi-Goutieres syndrome: A total of 23 patients with AGS from 20 families were enrolled, including 7 (30.43%) cases of AGS1, 3 (13.04%) cases of AGS2, 3 (13.04%) cases of ASG3, 1 (4.35%) case of AGS4, 2 (8.70%) cases of AGS6, and 7 (30.43%) cases of AGS7 (Table 3).