Reduced umbilical and placental vascular prostacyclin in severe pre-eclampsia - Remuzzi, G; Marchesi, D; Zoja, C; Muratore, D; Mecca, G; Misiani, R; Rossi, E; Barbato, M; Capetta, P; Donati, M B; de Gaetano, G (Prostaglandins, 1980)