radiation research sample bank Chernobyl Tissue Bank The Chernobyl Tissue Bank (CTB) is an international collaborative resource holding thyroid tissue samples, blood and other biological materials collected from patients in Ukraine, Russia and Belarus who developed thyroid cancer or benign nodules following childhood exposure to radioiodine from the Chernobyl accident. The bank has been a highly valuable tool for investigating radiation-induced molecular changes in thyroid tissue, with data showing distinct radiation-specific genomic signatures. Access is through an application process via the website, with no access restrictions beyond the application procedure. Located at Imperial College London. http://www.chernobyltissuebank.com Paul Schofield