A dominant negative ERβ splice variant determines the effectiveness of early or late estrogen therapy after ovariectomy in rats. oleh Jun Ming Wang, Xu Hou, Samuel Adeosun, Rosanne Hill, Sherry Henry, Ian Paul, Ronald W Irwin, Xiao-Ming Ou, Steven Bigler, Craig Stockmeier, Roberta Diaz Brinton, Elise Gomez-Sanchez