Epidermal growth factor receptor (EGFr) as a marker for poor prognosis in node-negative breast cancer patients: neu und tamoxifen failure. - Nicholson,S.; Wright,C.; Sainsbury,J.R.; Halcrow,P.; Kelly,P.; Angus,B.; Garndon,J.R.; Harris,A.L. (J Steroid Biochem Mol Biol, 1990)