看看医疗系统的变化

例一

http://www.molinahealthcare.com/abtmolina/who/Pages/history.aspx

http://investing.businessweek.com/research/stocks/snapshot/snapshot.asp?ticker=MOH:US

例二

http://www.northjersey.com/news/112298654_Bergen_Regional_Med_Center_cutting_up_to_50_jobs.html

http://www.nj.com/news/index.ssf/2011/02/police_investigate_second_suic.html