A randomized placebo controlled trial to evaluate the effect of the bisphosphonate, clodronate, on the incidence of metastases and mortality in patients with primary operable breast cancer. - Powles,T.J.; Paterson,A.H.; McCloskey,E.; Ashley,S.; Tidy,V.A.; Kanis,J.A.; Pylkkkänen,I. (Breast Canc Res Treat, 2001)