Peptide receptor radionuclide therapy for patients with somatostatin receptor expressing tumours. German Guideline (S1) - Poeppel, TD; Boy, C; Bockisch, A; Kotzerke, J; Buchmann, I; Ezziddin, S; Scheidhauer, K; Krause, BJ; Schmidt, D; Amthauer, H; Rösch, F; Nagarajah, J; Führer, D; Lahner, H; Pöpperl, G; Hörsch, D; Walter, MA; Baum, RP (Nuklearmedizin, 2015)