Affiliation: | a International Atomic Energy Agency, Division of Human Health, Wagramer Strasse 5, P.O. Box 100, 1400 Vienna, Austria b Radiology Department, Medical School, San Carlos University Hospital, Complutense University, 28040 Madrid, Spain c Clinical Oncology, The Chinese University of Hong Kong, Prince of Wales Hospital, 30-32 Ngan Shing Street, Shatin, Hong Kong SAR, China |