Antiestrogenic properties of keoxifene, trans-4-hydroxytamoxifen, and ICI 164 384, a new steroidal antiestrogen, in ZR-75-1 human breast cancer cells. - Poulin,R.; Merand,Y.; Poirier,D.; Levesque,C.; Dufour,J.M.; Labrie,F. (Breast Cancer Res Treat, 1989)