| Description | Two different copies of Paola Petrillo, Antonio La Regina, Massimo Sbacchi, Alessandra Tavani, Linda E Robson and Hans W Kosterlitz, 'Regional variation in binding capacities at µ - , 'd' - and k - opioid sites in membrane suspensions from rabbit brain' reprinted from 'European Journal of Pharmacology', 166 (1989), 213 - 217. |