chemotherapy
We therefore investigated the effect of treatment with the novel pure       antiestrogen EM-800, alone or in combination with chemotherapy, on the growth of        ZR-75-1 human breast tumors in nude mice, a well-recognized model of human breast       cancer.
We therefore investigated the  @PREDICAT$  of treatment with the novel pure       antiestrogen EM-800, alone or in combination with  @SUBJECT$ , on the  @OBJECT$  of        ZR-75-1 human breast tumors in nude mice, a well-recognized model of human breast       cancer.