The action of morphine and related substances on contraction and on acetylcholine output of coaxially stimulated guinea-pig ileum

摘要

These introductory comments were to have been written by Hans Kosterlitz. That would have been an account by someone contemporaneously involved in the problem of acetylcholine release from autonomic nerves and someone who was later to use the approach described in this paper to detect and eventually identify the enkephalin transmitters in the brain. Hans's final illness made that impossible and these comments less adequate as a result.