TY - RPRT TI - Reversion of muscarinic autoreceptor agonist-induced acetylcholine decrease and learning impairment by dynorphin A (1-13), an endogenous kappa-opioid receptor agonist. AU - M Hiramatsu AU - H Murasawa AU - H Mori AU - T Kameyama PY - 1998 DO - 10.1038/sj.bjp.0701671 UR - https://pubmed.ncbi.nlm.nih.gov/9535021/ ID - 9535021 ER -