scholarly journals First-trimester uteroplacental and fetal blood flow velocity waveforms in normally developing fetuses: a longitudinal study

1994 ◽  
Vol 4 (4) ◽  
pp. 284-288 ◽  
Author(s):  
M. M. van Zalen-Sprock ◽  
J. M. G. van Vugt ◽  
G. J. Colenbrander ◽  
H. P. van Geijn
1988 ◽  
Vol 159 (4) ◽  
pp. 947-950 ◽  
Author(s):  
Harbinder S. Brar ◽  
Arnold L. Medearis ◽  
Greggory R. DeVore ◽  
Lawrence D. Platt

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