US birthrates hit "another record low" in 2017, according to a report released Thursday by the National Center for Health Statistics.
원문출처 : https://www.cnn.com/2018/05/17/health/us-low-birthrates-nchs-study/index.html
원문출처 : https://www.cnn.com/2018/05/17/health/us-low-birthrates-nchs-study/index.html