3[5]Christakis NA,Escarece JJ.Survival of medicare patients after enrollment in hospice programs[J].N Engl Med,1996,335(3):172-178. 被引量:1
4[6]Joint Nation Committee on Detection,Evaiuation,and Treatment of High Blood Pressure.The fifth report of the Joint Nation Committee on Detection,Evaiuation,and Treatment of High Blood Pressure[R].Arc Inlern Med,1993,153(2):154-183. 被引量:1