TY  - BOOK
AU  - Ola Ismail Hassan
AU  - Abdelwahab Elghareeb , 
AU  - Aziza Mansour Ali , 
AU  - Mustafa M. Zaher , 
TI  - Evaluation of human zygote characteristics as an efficient tool for embryo selection in intracytoplasmic sperm injection / 
PY  - 2012///
CY  - Cairo : 
PB  - Ola Ismail Hassan , 
KW  - Embryo quality
KW  - Embryo selection
KW  - ICSI
N1  - Thesis (M.Sc.) - Cairo University - Faculty of Science - Department of Zoology; Issued also as CD
N2  - Some studies have thought that zygote morphology could be used for the assessment of human embryo quality .In the present study PN stage morphology was assessed and combined with day 2 or 3 morphology for transfer in order to investigate whether currently used zygote classifications are able to predict embryo quality and pregnancy rates . Zygotes were analysed according to two different classification systems Tesarik and Greco (1999) and Kattera and Chen (2004) A total of 499 zygotes were analysed
ER  -