Previous Article Next Article Table of Contents Science, Vol.266, No.5184, 462-463, 1994 DOI10.1126/science.7939689 Export Citation Identifying Clonidine-Displacing Substance Atlas D Keywords:GUANIDINIUM RECEPTIVE SITE;ALPHA-2-ADRENERGIC RECEPTOR;IMIDAZOLINE Please enable JavaScript to view the comments powered by Disqus.