title: Randomized comparison of two different blastocyst grading systems.
abstract: A more detailed blastocyst grading system provides a better selection of blastocysts with the highest implantation potential. Grading systems will help to decrease the number of blastocysts to be transferred without compromising high implantation and pregnancy rates.
authors.affiliation: Assisted Reproduction Unit, VKV American Hospital, Istanbul, Turkey.
authors.forename: Basak
authors.initials: B
authors.lastname: Balaban
authors.forename: Kayhan
authors.initials: K
authors.lastname: Yakin
authors.forename: Bulent
authors.initials: B
authors.lastname: Urman
mesh_terms: D000328:Adult; D001755:Blastocyst / Q000648:ultrastructure*; D046149:Embryo Culture Techniques; D010064:Embryo Implantation; D004624:Embryo Transfer; D005260:Female; D006801:Humans; D011247:Pregnancy; D018873:Pregnancy Rate; D027724:Reproductive Techniques, Assisted