Jogn Rother, the AARP's head of policy and strategy, points to studies showing that other things being equal, people who remain at work have lower death rates than their retired peers. 美国退休人员协会政策与战略的领导,指到研究表明其他事情是公平的,现在仍在工作的人们有更低的死亡率比那些已经退休的。
The paper briefly introduces the development status of Laser therapy and rother carefully discusses the mechanism of laser therapy, the kinds of Laser therapy machine, clinical practice and the future development direct. 本文概括介绍了激光医疗的发展现状,对激光治疗机理,激光医疗机的种类,临床应用以及今后的发展方向做了较详细的综述。