3Roy FB.Suicide as escape from self[J].Psychological Review,1990,97(1);90-113.
4Uncapher H,Cahhagher-Thompson D,Osgood NJ,et al.Hopelessness and suicidal ideation in older adults[J].Gerontologist,1998,38:62-70.
5Harwood D,Jacody R.Suicidal behavior among the elderly[M]//Hawton K,Van Heeringen K,eds.International handbook of suicide and attempted suicide.Chichester:John wiley and sons,2000:275-291.
10Phillips MR,Yang GH,Zhang YP,et al.Risk factors for suicide in China:A national case-control psychological autopsy study[J].Zancet,2002,360:1728-1736.
3Kuo WH, Gallo J J, Tien AY. Incidence of suicide ide- ation and attempts in adults: the 13-year follow-up of a community sample in Baltimore, Maryland. Psycho- logical Medicine, 2001, 31(7) : 1181-1191.