Proceedings of a symposium, Vienna, 15–19 August 1988. The papers deal mainly with clinical applications of dynamic functional studies and document some of the problems involved in setting up nuclear medicine facilities in general, and specifically for the diagnosis of the diseases prevalent in less developed countries. Other topics covered are quality control of equipment and the transfer of medical technology. Contents: Introduction; Nuclear cardiology; Renal function studies; Thyroid; Hepatobiliary function; Gastroenterology; Brain, bone; Lung; Miscellaneous; Instruments; Quality control; Cerebral function studies.