title: Pregnancy outcome after blastocyst transfer as compared to early cleavage stage embryo transfer.
authors.forename: M
authors.initials: M
authors.lastname: Montag
authors.forename: H
authors.initials: H
authors.lastname: van der Ven
mesh_terms: D001755:Blastocyst; D002970:Cleavage Stage, Ovum; D004624:Embryo Transfer; D005260:Female; D006801:Humans; D008423:Maternal Age; D011247:Pregnancy; D011256:Pregnancy Outcome; D014427:Twins