| Description | Typescript and second copy of Hans W Kosterlitz, 'Methodological problems in the definition of k receptors' reprinted from R Boigegrain, J Cros, M Morre, J P Muyard and R Roncucci, eds., 'Quo Vadis? Analgesia and Enkephalinases. Kappa Receptors and their Ligands' (Montpellier, 1984), 265 - 269. |