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Maternal thyroid function in multifetal pregnancies before and after fetal reduction.
Ogueh O, Hawkins AP, Abbas A, Carter GD, Nicolaides KH, Johnson MR.
J Endocrin 2000;164:7-11. -
Cervicovaginal fibronectin and cervical length at 23 weeks of gestation: relative risk of early preterm delivery.
Heath VC, Daskalakis G, Zagaliki A, Carvalho M, Nicolaides KH.
BJOG 2000;107:1276-81.