Protocol for the National Cooperative Dialysis Study.
D000293:Adolescent; D000328:Adult; D000368:Aged; D002986:Clinical Trials as Topic; D006801:Humans; D008875:Middle Aged; D010043:Outcome and Process Assessment, Health Care; D011897:Random Allocation; D006435:Renal Dialysis; D012107:Research Design; D014511:Uremia / Q000628:therapy