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Note:The fetus is exposed to a wide variety of noises from inside mom's body (such as mom's voice and heartbeat and gurgling in her digestive tract) as well as noises outside mom's body (such as music, other voices, machinery, traffic, etc.).Script: 7 САР Ураг 28 дахь долоо хоног дээрээ дууны бүдүүн нарийныг ялгах чадвартай болсон байдаг. | ||
| All ages referenced to fertilization, not last menstrual period. One month = 4 weeks. |