1- Croog SH, Levine S. Quality of life and health care evaluations. In: Freeman HE, Levine S, Englewood Cliffs NJ.
                                                                                                                Handbook of Medical Sociology, 4th ed. Prentice Hall:1989.p 508–528.
                                                                                                                2- Kimmel PL. Psychosocial factors in dialysis patients. Nephrology Forum. Kidney Int 2001; 59:1599–161303.
                                                                                                                3- Mingardi G, Cornalba L, Cortinovis E, Ruggiata R, Mosconi P, Apolone G. Health-related quality of life in dialysis
                                                                                                                patients. A report from an Italian study using the SF-36 Health Survey. DIA-QOL Group. Nephrol Dial Transplantant.
                                                                                                                1999;14:1503–1510.
                                                                                                                4- Jofre R, Lopez-Gomez J, Alderrabano F. Quality of life for patient group. Kidney Int 2000;57 :S121-S130.
                                                                                                                5- Diaz-Buxo JA, Lowrie EG, Lew NL, Zhang H, Lazarus JM. Quality-of-life evaluation using short form 36:
                                                                                                                comparison in hemodialysis and peritoneal dialysis patients. Am J Kidney Dis 2000:35:299-300
                                                                                                                6- Liem YS, Bosch JL<Arends LR, Heijenbrok_kal MH, Hunink MG. Quality of life assessed with the medical
                                                                                                                outcomes study short form 36-item health survey of patients on renal replacement therapy: a systemic review and metaanalysis.
                                                                                                                Value Health 2007; 10:390.
                                                                                                                7- Sayin A, Mutluay R, Sindel S. Quality of life in hemodialysis, peritoneal dialysis ,and transplantation patients.
                                                                                                                Transplant Proc 2007; 39:3047-3053.
                                                                                                                8- Ai-Hua Zhang, LI-Tao Cheng, Ning Zhu. Comparison of quality of life of hemodialysis and peritoneal dialysis
                                                                                                                patients in China. Health Qual Life Outcomes 2007; 5:49.
                                                                                                                9- Powe NR, Klag MJ, Sadler JH, Anderson GF, Bass EB, Briggs WA, et al. Wu AW for the CHOICE Study: Choices
                                                                                                                for healthy outcomes in caring for end stage renal disease. Semin Dial 19969; 9–11.
                                                                                                                10- Merkus MP, Jager KJ, Dekker FW, Boeschoten EW, Stevens P, Krediet RT. Quality of life in patients on
                                                                                                                chronicdialysis: self-assessment 3 months afterthe start of treatment. The Necosad StudyGroup. Am J Kidney Dis
                                                                                                                1997; 29584-592.
                                                                                                                11- Mau LW, Chiu HC, Chang PY, Hwang SC, Hwang SJ. Health-related quality of life in Taiwanese dialysis patients:
                                                                                                                effects of dialysis modality. Kaohsiung J Med Sci 2008; 24:453-460.
                                                                                                                12- Kutner NG, Zhang R, Barnhart H, Collins AJ. Health status and quality of life reported by incident patients after 1
                                                                                                                ear on haemodialysis or peritoneal dialysis. Nephrol Dial Transplant 2005; 20:2159-2167.
                                                                                                                13- Szabo E, Moody H, Hamilton T, Ang C, Kovithavongs C, Kjellstrand C. Choice of treatment improves quality of
                                                                                                                life. Arch Intern Med 1997; 157:1352–1356.
                                                                                                                14- Winkelmayer WC, Glynn RJ, Mittleman MA, Levin R, Pliskin JS, Avorn J. Comparing mortality of elderly patients
                                                                                                                on hemodialysis versus peritoneal dialysis: A propensity score approach. J Am Soc Nephrol 2002; 13: 2353–2362.
                                                                                                                15- Wasserfallen JB, Halabi G, Saudan P, Perneger T, Feldman HI, Martin PY, et al. Quality of life on chronic dialysis:
                                                                                                                comparison between hemodialysis and peritoneal dialysis. Nephrol Dial Transplant 2004; 19:1594-1599.
                                                                                                                16- Harris LE, Luft FC, Rudy DW, Tierney WM. Clinical correlates of functional status in patients with renal
                                                                                                                insufficiency. Am J Kidney Dis 1993; 21:161–166.