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Maternal serum vitamin D levels at 11-13 weeks of gestation in preeclampsia.
Yu CK, Ertl R, Skyfta E, Akolekar R, Nicolaides KH.
Hum Hypertens 2013;27:115-8 pdf -
Maternal serum vitamin D at 11-13 weeks in pregnancies delivering small for gestational age neonates.
Ertl R, Yu CK, Samaha R, Akolekar R, Nicolaides KH.
Fetal Diagn Ther 2012;31:103-8 pdf -
Maternal serum 25-hydroxyvitamin D levels at 11(+0) -13(+6) weeks in pregnant women with diabetes mellitus and in those with macrosomic neonates.
Savvidou M, Akolekar R, Samaha R, Masconi A, Nicolaides Kh.
BJOG 2011;118:951-5 -
First-trimester circulating 25-hydroxyvitamin d levels and development of gestational diabetes mellitus.
Makgoba M, Nelson SM, Savvidou M, Messow CM, Nicolaides K, Sattar N.
Diabetes Care 2011;34:1091-3