1. From the Center for Neuroscience, National Sun Yat-sen University (S.H.H.C.), Kaohsiung; Department of Pharmacology, National Cheng Kung University (K.S.H., C.C.H.), Tainan; and Department of Medical Education and Research, Kaohsiung Veterans General Hospital (L.L.W., C.C.O., J.Y.H.C.), Kaohsiung, Taiwan, Republic of China.