Probable dysfunctional protein S in a patient with congenital heterozygous protein C deficiency: A family study - Sakata, T; Tsushima, N; Hatanaka, K; Morishita, T; Hatsuyama, H; Uchida, K; Katayama, Y; Matsuyama, T (Jpn J Thromb Hemostas, 1991)