CNTN4 and Alzheimer disease: Values were missing for: CNTN2—2 patients (1 AD and 1 PDD/DLB), CNTN3—6 patients (1 Con, 1 AD, 2 bvFTD, 2 PDD/DLB), CNTN4—7 patients (2 Con, 2 AD, 1 bvFTD, 2 PDD/DLB, CNTN5—3 patients ( 2 AD and 1 PDD/DLB), and CNTN6—1 PDD/DLB patient.