A comparison of the impact of screen-positive results obtained from ultrasound and biochemical screening for Down syndrome in the first trimester: a pilot study
Keyword(s):
1996 ◽
Vol 16
(7)
◽
pp. 675-676
◽
2005 ◽
Vol 193
(6)
◽
pp. S160
Keyword(s):
Keyword(s):
2013 ◽
Vol 208
(1)
◽
pp. S253-S254
Keyword(s):
2000 ◽
Vol 20
(10)
◽
pp. 785-789
◽