Low levels of the anticoagulant activity of protein C in patients with chronic renal insufficiency: an inhibitor of protein C is present in uremic plasma - Faioni, E M; Franchi, F; Krachmalnicoff, A; Valsecchi, C; Viganò, G L; Remuzzi, G; Mannucci, P M (Thromb Haemost, 1991)