说明The International Atomic Energy Agency’s Mobile Isotope Laboratory, a gift from the USA Government, has been sent to Athens help in the diagnosis of certain disease, in connection with a research contract made between the Agency and the Isotope Laboratory of the Alexandra Hospital in Athens. The picture shows the Isotope Laboratory crossing a wooden bridge on the Yugoslavia side of the Greek frontier. IAEA/April 1959/No. 714 B. Please credit IAEA