Despite a 23-year campaign urging that babies be put to bed on their backs, only 43.7% of US mothers report that they both intend to use this method and actually do so all the time, according to a new study.
원문출처 : http://www.cnn.com/2017/08/21/health/baby-sleep-guidelines-sids-study/index.html
원문출처 : http://www.cnn.com/2017/08/21/health/baby-sleep-guidelines-sids-study/index.html