Expression of prolyl-hydroxylases PHD-1, 2 and 3 and of the asparagine hydroxylase FIH in non-small cell lung cancer relates to an activated HIF pathway. - Giatromanolaki, A; Koukourakis, M; Pezzella, F; Turley, H; Sivridis, E; Bouros, D; Bougioukas, G; Harris, A; Gatter, K (Cancer letters, 2008)