Circulating vascular cell adhesion molecule-1 in pre-eclampsia, gestational hypertension, and normal pregnancy: evidence of selective dysregulation of vascular cell adhesion molecule-1 homeostasis in pre-eclampsia - Higgins,J.R.; Papayianni,A.; Brady,H.R.; Darling,M.R.; Walshe,J.J. (Am J Obstet Gynecol, 1998)