WITHDRAWN: Enkephalin- and dynorphin-release produced by electrical stimulation of different frequencies in rat brain slices Li Meng, Guogang Xing, Cailian Cui, Jisheng Han Neuroscience Research Institute, School of Basic Medical Science, Peking University, 38 Xue-Yuan Road, Beijing 100191, China
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This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy.
