First-Trimester Screening for Trisomy 21 Using Alpha-Fetoprotein
Keyword(s):
2010 ◽
Vol 36
(5)
◽
pp. 542-547
◽
Keyword(s):
2004 ◽
Vol 104
(4)
◽
pp. 661-666
◽
Keyword(s):
2005 ◽
Vol 192
(4)
◽
pp. 1107-1111
◽
Keyword(s):
Keyword(s):
2009 ◽
Vol 201
(6)
◽
pp. S38
Keyword(s):
2009 ◽
Vol 33
(4)
◽
pp. 387-393
◽
Keyword(s):
Keyword(s):