Fig. 11. High power SEM of the inside of a stage 3 embryo in vitro resulting from intracytoplasmic sperm injection of an ovum that was cultured for five days (original magnification x30,000). The elongated cells on the right are trophoblast cells.
(From: Makabe et al. 2001. Reproduced with permission of the publisher, the Italian Journal of Anatomy & Embryology.)
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