Neural tube defects
From W8MD weight loss and sleep centers
Birth defects of the brain and spinal cord. They happen when the neural tube, which develops into the brain and spinal cord during the first few weeks of pregnancy, doesn't close completely. One common neural tube defect is spina bifida, in which part of the spinal cord pokes through the spine. Another common neural tube defect is anencephaly, in which major parts of the brain are missing, and the baby dies.
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