Absent fetal nasal bone in the second trimester and risk of abnormal karyotype in a prescreened population of Chinese women
2017 ◽
Vol 97
(2)
◽
pp. 180-186
◽
2005 ◽
Vol 24
(11)
◽
pp. 1487-1489
◽
Keyword(s):
2006 ◽
Vol 32
(4)
◽
pp. 403-407
◽
Keyword(s):
Keyword(s):
2014 ◽
Vol 182
◽
pp. 264
Keyword(s):