title: Clinical risk factors for pre-eclampsia early pregnancy: problems with systematic review.
authors.affiliation: Fetal Medicine Unit, St George's Hospital, London SW17 0QT, UK.
authors.forename: Basky
authors.initials: B
authors.lastname: Thilagnathan
mesh_terms: D005260:Female; D006801:Humans; D010298:Parity; D011225:Pre-Eclampsia; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D012307:Risk Factors