First-trimester prenatal diagnosis in twin pregnancies
2005 ◽
Vol 24
(5)
◽
pp. 717-719
◽
1986 ◽
Vol 53
(6)
◽
pp. 747-759
◽
2007 ◽
Vol 63
(4)
◽
pp. 200-202
◽
2009 ◽
Vol 201
(6)
◽
pp. S260
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