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Pseudogenes,which have long been described as "fossils",play a very important role in eukaryotic genomes.Recently,studies on the so called "junk gene" have attracted more attention.Far from being sileht,pseudogenes participate in various biological activities.BIDMC Cancer Institute have provided the first evidence that pseudogene functions as a competitive endogenous RNA (ceRNA) and induces cancer in vivo.Therefore,it is important to identify the cancer-related pseudogene that function as ceRNA for clinical research.However,previous studies simply focus on single pseudogene and lack of the study that systematically identify functional pseudogene.