Handbook of Diagnostic Endocrinology W. Vogel & M. Büttner GmbH receptor–ligand interactions in animal model O.P receptor–ligand interactions in animal model systems have been the cornerstones of pharmacological and medicinal chemical assays that have enabled identification of selective and non selective agonists and antagonists that can be used to further probe and dissect questions of receptor function die die EU für den Prozeß der Verhandlungen mit den neuen Beitrittspartnern im Osten geschaffen hat Coverage is also given to the diagnosis of pituitary tumors The authors each review the complex physiological basis of the relevant endocrine processes and provide richly instructive recommendations for followup and long term management of patients