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First trimester maternal uterine artery Doppler examination in HIV-positive women.
Savvidou M, Samuel M, Akolekar R, Poulton M, Nicolaides K.
HIV Med 2011;12:632-6. -
Heart stroke volume and cardiac output by four-dimensional ultrasound in normal fetuses.
Molina FS, Faro C, Sotiriadis A, Dagklis T, Nicolaides KH.
Ultrasound Obstet Gynecol 2008;32:181-7.