8Wolfgang C, Winkelmayer, William F, et al. A propensity analysis of late versus early nephrologist referral and mortality on dialysis [J]. J Am Soc Nephrol, 2003, 14:486 -492.
9Stack AG. Impact of timing of nephrology referral and pre - ESRD care on mortality risk among new ESRD patients in the United States [J].Am J Kidney Dis, 2003, 41 (2): 310 -318.
10Lameire N, Van biesen W. The pattern of patients with end - stage renal disease to the nephrologists - a European survey [J]. Nephrol Dia Transplant, 1999, 14 (suppl 6) : 16 -23.
