1. The early blastocyst is bilaterally symmetrical and its axis of symmetry is aligned with the animal-vegetal axis of the zygote in the mouse;Gardner;Development,1997
2. Specification of embryonic axes begins before cleavage in normal mouse development;Gardner;Development,2001
3. Blastomeres arising from the first cleavage division have distinguishable fates in normal mouse development;Piotrowska;Development,2001
4. Role for sperm in spatial patterning of the early mouse embryo;Piotrowska;Nature,2001
5. Deviation of the blastocyst axis from the first cleavage plane does not affect the quality of mouse postimplantation development;Alarcon;Biol Reprod,2003