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. Author manuscript; available in PMC: 2007 May 25.
Published in final edited form as: Hum Reprod Update. 2006 May 8;12(6):747–755. doi: 10.1093/humupd/dml016

Figure 2.

Figure 2

Diagram of a gestational sac at the end of the 2nd month showing the myometrium (M), the decidua (D), the placenta (P), the exo-coelomic cavity (ECC), the amniotic cavity (AC) and the secondary yolk sac (SYS).