Vitamins C and E, retinol, beta-carotene and dietary fibre in relation to breast cancer risk: a prospective cohort studyDTH Verhoeven, Piet A. van den Brandt, Elisabeth Dorant et al.|British Journal of Cancer|1997Cited by 187
SELENIUM IN DIET, BLOOD, AND TOENAILS IN RELATION TO BREAST CANCER: A CASE-CONTROL STUDYP van 't Veer, F. Sturmans, Rudolph J. J. Hermus et al.|American Journal of Epidemiology|1990Cited by 97