Welcome to the catalogue of DISCERN: Discovering the Causes of Three Poorly Understood Cancers in Europe. Discovering the Causes of Three Poorly Understood Cancers in Europe (DISCERN) is a five-year project of the European Commission Cancer Mission to understand the causes of renal, pancreatic, and colorectal cancer in Europe and to help explain the geographical distribution of these cancer types, including their high incidence in central and eastern Europe..