As he approached his 50th birthday, Steve Ludwin felt like he might finally be growing out of his long-term habit.
원문출처 : http://www.cnn.com/2016/12/21/health/snake-venom-injection-research/index.html
원문출처 : http://www.cnn.com/2016/12/21/health/snake-venom-injection-research/index.html