Homozygous protein C deficiency: identification of a novel missuse mutation that causes impaired secretion of the mutant protein C - Yamamoto, K; Matsushita, T; Sugiura, I; Takamatsu, J; Iwasaki, E; Wada, H; Deguchi, K; Shirakawa, S; Saito, H (J Lab Clin Med, 1992)