Breast conservation is a safe method in patients with small cancer of the breast. Long-term results of three randomised trials on 1973 patients. - Veronesi,U.; Salvadori,B.; Luini,A.; Greco,M.; Saccozzi,R.; Del-Vecchio,M.; Mariani,L.; Zurrida,S.; Rilke,F. (Eur J Cancer, 1995)