世界で最も健康的な国トップ10This copy is for your personal, non-commercial use only. Distribution and use of this material are governed by our Subscriber Agreement and by copyright law. For non-personal use or to order multiple copies, please contact Dow Jones Reprints at 1-800-843-0008 or visit www.djreprints.com. http://jp.wsj.com/article/SB12312591300819944275804580611673178984944.html ここ数十年、平均寿命は劇的に延びており、世界の乳児死亡率は長期にわたって
