Progression of chronic renal failure.
D000818:Animals; D006801:Humans; D007676:Kidney Failure, Chronic / Q000150:complications / Q000503:physiopathology*; D011379:Prognosis; D011507:Proteinuria / Q000209:etiology; D051381:Rats; D011919:Rats, Inbred Strains; D013997:Time Factors