2Courten AM, Stevens CJ, CrebolderJM, et al.Longitudinal study on quality of life and social support in cancer patients. Cancer Nursing, 1996, 19 (3): 162-169.
3Friedman MM.Social support resources and psychological well-being in older women with heart disease. Research in Nursing and health, 1993, 18, 405-413.
4Guilick EE.Social support among persons with multiple sclerosis. Research in Nursing and Health, 1994, 17: 195.