High frequency of TP53 mutations in juvenile pilocytic astrocytomas indicates role of TP53 in the development of these tumors. - Hayes,V.M.; Dirven,C.M.; Dam,A.; Verlind,E.; Molenaar,W.M.; Mooij,J.J.; Hofstra,R.M.; Buys,C.H. (Brain Pathol, 1999)