An ultrahigh input impedance low noise analog front-end design for epilepsy brain recording system. - Nguyen Thi Ngoc Anh; Nguyen The Tien; Nguyen Van Tuan; Dao Duy Tuan; Vu Van Thanh; Pham Quang Thai; Huynh Hai Au; Nguyen Van Tho (Int. J. Circuit Theory Appl., 2024)