Contrast-enhanced spectral mammography versus MRI: Initial results in the detection of breast cancer and assessment of tumour size. - Fallenberg, E.; Dromain, C.; Diekmann, F.; Engelken, F.; Krohn, M.; Singh, J.; Ingold-Heppner, B.; Winzer, K.; Bick, U.; Renz, D. (European Radiology, 2014)