%0 Journal Article %T Differential effects of naloxone on neuroendocrine responses to fear-related emotional stress %A Onaka, T. %A Yagi, K. %J Experimental Brain Research %V 81 %N 1 %P 53-58 %@ 0014-4819 %D 1990-06-01 %I Springer-Verlag %~ DeepDyve