Antioxidant therapy to prevent preeclampsia: a randomized controlled trial. - Spinnato JA II; Freire S; Pinto e Silva JL; Rudge MVC; Martins-Costa S; Koch MA; Goco N; de Barros Santos C; Cecatti JG; Costa R; Ramos JH; Moss N; et al. (Obstetrics & Gynecology, 2007)