Cardiovascular disease is the No. 1 killer around the world. It killed an estimated 17.7 million people in 2015, representing 31% of all deaths globally, according to the World Health Organization.
원문출처 : http://www.cnn.com/2016/12/26/health/what-is-heart-failure-heart-attack-sudden-cardiac-arrest-explainer/index.html
원문출처 : http://www.cnn.com/2016/12/26/health/what-is-heart-failure-heart-attack-sudden-cardiac-arrest-explainer/index.html