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Script: EMVA KWEEMVEKE EZI-4 I-amnion esele ibonakala kuhle izungeze i-embryo ngaphakathi komgodlana ogcwele amanzi. Amanzana la, abizwa nge-amniotic fluid, avikela i-embryo bona ingalimali. | ||
All ages referenced to fertilization, not last menstrual period. |