AP3D1 and transient ischemic attack: Correlation analysis of s-AP3D1-Ab levels and subject data was performed using 633 specimens from Chiba Prefectural Sawara Hospital, including 139 samples from HDs, 121 from patients with DSWMH, 17 from patients with asymptCI, 43 from patients with TIA, 226 from patients with AIS, 57 from patients with cCI, and 30 from other diseases.