The impact of fetal gender on prematurity in dichorial twin gestations after in vitro fertilization.

Opposite-sex twins (delivered at 32.9 weeks) were at higher risk of premature delivery than same-sex twins (34.3 weeks).

Citation Page #: 2010, 8:57.
Journal: Reprod Biol Endocrinol
Author Publication: Weghofer A, Klein K, Stammler-Safar M, Worda C, Barad DH, Husslein P, Gleicher N.
Publication Link: http://www.rbej.com/content/pdf/1477-7827-8-57.pdf
Date: 2010