| from leningrad to london: the saga of kulchitsky and the legacy of the enterochromaffin cell. | by the end of the 19th century, the subject of internal secretion and the consequences of its perturbations had been explored in considerable depth but with little clear understanding. despite the anatomic delineation of the majority of the glands and tissues that comprised the gross endocrine system, the cellular basis and the interactions between the 'internal glands' and the nervous system had not been clearly delineated. prominent early investigators in the field included rudolf peter heiden ... | 2009 | 18562785 |