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Maternal age and adverse pregnancy outcomes: a cohort study.
Khalil A, Syngelaki A, Maiz N, Zinevich Y, Nicolaides KH.
Ultrasound Obstet Gynecol 2013;42:634-43. pdf -
Amniotic fluid gram stain and leukocyte count in the predicion of intrautering infection in preterm prelabour amniorrhexis.
Carroll SG, Philpott-Howard J, Nicolaides KH.
Fetal Diagn Ther 1996;11:1-5.