1. The adequacy of haemodialysis in treatment of chronic renal failure;Twardowski Z;Acta Med Pol,1974
2. Significance of certain measurable parameters in the evaluation of haemodialysis adequacy;Twardowski Z;Acta Med Pol,1974
3. Effect of long‐term increase in the frequency and/or prolongation of dialysis duration on certain clinical manifestations and results of laboratory investigations in patients with chronic renal failure;Twardowski Z;Acta Med Pol,1975
4. Wielokrotne uzycie dializatora – prosty i bezpieczny sposób zmniejszenia kosztów dializy [Repeated use of dialyzer – a simple and safe method for lowering the cost of dialysis];Twardowski Z;Pol Arch Med Wewn,1972