World Health Organisation multicentre randomised trial of supplementation with vitamins C and E among pregnant women at high risk for pre-eclampsia in populations of low nutritional status from developing countries.
Nuffield Department of Obstetrics and Gynaecology, Oxford Maternal and Perinatal Health Institute, Green Templeton College, University of Oxford, Oxford, UK. jose.villar@obs-gyn.ox.ac.uk
