A Randomized Phase III Evaluation of Docetaxel (NSC #628503) and Gemcitabine (NSC #613327) Plus G-CSF with Bevacizumab (NSC #704865; IND #113912) Versus Docetaxel (NSC #628503) and Gemcitabine (NSC #613327) Plus G-CSF with Placebo in the Treatment of Recurrent or Advanced Leiomyosarcoma of the Uterus. NCI Supplied Agent: Bevacizumab (NSC #704865; IND #113912) NCT#01012297