Richards A, Graham DI, Bullock MRR: Clinicopathological study of neurological complications due to hypertensive disorders of pregnancy. J Neurol Neurosurg Psychiatty 51:416,n1988 Roberge A, Nicolaides K, Demers S, et al: he role of aspirin dose on the prevention of preeclampsia and fetal growth restriction: systematic review and meta-analysis. AmJ Obstet GynecoI216(2):110, 2017 Roberge S, Giguere Y, Villa P, et al: Early administration of low-dose aspirin for the prevention of severe and mild preeclampsia: a systematic review and meta-analysis. Am J PerinatoIn29(7):551, 2012 Roberts JM, Myatt L, Spong CY, et al: Vitamins C and E to prevent complications of pregnancy-associated hypertension. N Engl J Med 362(14):1282, 2010 Rodger A, Gris JC, de Vries JI, et al: Low-molecular-weight-heparin and recurrent placenta-mediated pregnancy complications: a meta-analysis of individual patient data from randomised controlled trials. Lancet 388(10060):2629,n2016 Roland C, Warshak CR, DeFranco EA: Success of labor induction for preeclampsia at preterm and term gestational ages. J PerinatoIn37(6):636, 20n17 Rolnik DL, Wright D, Poon Le, et al: Aspirin versus placebo in pregnancies at high risk for preterm preeclampsia. N Engl J Med 377:613,n2017 Roos NM, Wiegman MJ, Jansonius NM, et al: Visual disturbance in (pre) eclampsia. Obstet Gynecol Surv 67(4):242,n2012 Royal College of Obstetricians and Gynaecologists: he management of severe pre-eclampsia. RCOG Guideline lOA: 1, 2006 Rumbold R, Crowther CA, Haslam RR: Vitamins C and E and the risks of preeclampsia and perinatal complications. N Engl J Med 354: 17, 2006