Suppression of Conditioned Fear by Administration of CCKB Receptor Antisense Oligodeoxynucleotide into the Lateral Ventricle - Tsutsumi, T; Akiyoshi, J; Hikichi, T; Kiyota, A; Kohno, Y; Katsuragi, S; Yamamoto, Y; Isogawa, K; Nagayama, H (Pharmacopsychiatry, 2001)