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Maternal serum ferritin at 11- to 13-week gestation in spontaneous early preterm delivery.
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J Matern Fetal Neonatal Med 2012;25:1852-5. -
Urine albumin concentration and albumin-to-creatinine ratio at 11(+0) to 13(+6) weeks in the prediction of pre-eclampsia.
Poon LC, Kametas N, Bonino S, Vercellotti E, Nicolaides KH.
BJOG 2008;115:866-73. -
Serum ferritin and cobalamin in red blood cell isoimmunisation.
Abbas A, Nicolaides KH.
Fetal Diagn Ther 1995;10:297-300.