Preferable correlation to blastocyst development and pregnancy rates with a new embryo grading system specific for day 3 embryos

[1] Puissant F(1987)Embryo scoring as a prognostic tool in IVF treatment Hum Reprod 2 705-708

[2] Van Rysselberge M(1986)A formula for scoring human embryo growth rates in in vitro fertilization: its value in predicting pregnancy and in comparison with visual estimates of embryo quality J In Vitro Fert Embryo Transf 3 284-295

[3] Barlow P(1988)Oocyte assessment and biological performance Ann N Y Acad Sci 541 259-274

[4] Deweze J(1997)Embryo morphology or cleavage stage: how to select the best embryos for transfer after in-vitro fertilization Hum Reprod 12 1545-1549

[5] Leroy F(1998)A prospective randomized trial of blastocyst culture and transfer in in-vitro fertilization Hum Reprod 13 3434-3440

[6] Cummins JM(1998)Culture and transfer of human blastocysts increases implantation rates and reduces the need for multiple embryo transfers Fertil Steril 69 84-88

[7] Breen TM(2004)Pregnancy outcome after blastocyst transfer as compared to early cleavage stage embryo transfer Hum Reprod 19 2097-2102

[8] Harrison KL(1999)Two-blastocyst transfer has similar pregnancy rates and a decreased multiple gestation rate compared with three-blastocyst transfer Fertil Steril 72 225-228

[9] Shaw JM(2000)Blastocyst score affects implantation and pregnancy outcome: towards a single blastocyst transfer Fertil Steril 73 1155-1158

[10] Wilson LM(2004)Embryo transfer is equally effective at cleavage stage and blastocyst stage: a randomized prospective study Eur J Obstet Gynecol Reprod Biol 117 194-200

[1] Puissant F(1987)Embryo scoring as a prognostic tool in IVF treatment Hum Reprod 2 705-708

[2] Van Rysselberge M(1986)A formula for scoring human embryo growth rates in in vitro fertilization: its value in predicting pregnancy and in comparison with visual estimates of embryo quality J In Vitro Fert Embryo Transf 3 284-295

[3] Barlow P(1988)Oocyte assessment and biological performance Ann N Y Acad Sci 541 259-274

[4] Deweze J(1997)Embryo morphology or cleavage stage: how to select the best embryos for transfer after in-vitro fertilization Hum Reprod 12 1545-1549

[5] Leroy F(1998)A prospective randomized trial of blastocyst culture and transfer in in-vitro fertilization Hum Reprod 13 3434-3440

[6] Cummins JM(1998)Culture and transfer of human blastocysts increases implantation rates and reduces the need for multiple embryo transfers Fertil Steril 69 84-88

[7] Breen TM(2004)Pregnancy outcome after blastocyst transfer as compared to early cleavage stage embryo transfer Hum Reprod 19 2097-2102

[8] Harrison KL(1999)Two-blastocyst transfer has similar pregnancy rates and a decreased multiple gestation rate compared with three-blastocyst transfer Fertil Steril 72 225-228

[9] Shaw JM(2000)Blastocyst score affects implantation and pregnancy outcome: towards a single blastocyst transfer Fertil Steril 73 1155-1158

[10] Wilson LM(2004)Embryo transfer is equally effective at cleavage stage and blastocyst stage: a randomized prospective study Eur J Obstet Gynecol Reprod Biol 117 194-200