Data management, data analysis, and statistical methods in the National Cooperative Dialysis Study.
D002986:Clinical Trials as Topic; D003625:Data Collection / Q000379:methods*; D006801:Humans; D007256:Information Systems / Q000592:standards; D011786:Quality Control; D006435:Renal Dialysis; D013223:Statistics as Topic; D014511:Uremia / Q000628:therapy