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Script: Emaviki lasiphohlongo aluphawu Lwekuphela kwesikhatsi se-embriyo. Ngalesikhatsi lesi, i-embriyo yemuntfu seyikhule kusuka ekubeni yinhlayiya yinye yaba nguletinhlayiya cishe letisigidzi lesisigidzi letakha ngetulu kwa-4,000 wetakhiwo temtimba letingafani. Nyalo i-embriyo inetakhiwo letingetulu kwa-90% taleto letitfolakala ebantfwini labadzala. | ||
All ages referenced to fertilization, not last menstrual period. |