Prostaglandin E2 stimulates aromatase expression in endometriosis- derived stromal cells. - Noble,L.S.; Takayama,K.; Zeitoun,K.M.; Putman,J.M.; Johns,D.A.; Hinshelwood,M.M.; Agarwal,V.R.; Zhao,Y.; Carr,B.R.; Bulun,S.E. (J Clin Endocrinol Metab, 1997)