For citations:

Ryss E.S., Lutoshkin M.B. ACTIVE METHODS OF CHRONIC RENAL FAILURE TREATMENT AND UPPER GASTROINTESTINAL TRACT PATHOLOGY (clinical endoscopic studies). Nephrology (Saint-Petersburg). 1997;1(1):27-32. (In Russ.) https://doi.org/10.24884/1561-6274-1997-1-1-27-32