Elements of mTOR/akt signaling pathway exhibit biomarker potential in penile squamous cell carcinoma oleh A. Thomas, S. Reetz, K. Tagscherer, P. Stenzel, W. Roth, S. Macher-Goeppinger, S.R. Rogatto, J. Vanthoor, M. Albersen, A. Haferkamp, E. Juengel, I. Tsaur