Upregulation of Thrombomodulin Antigen Levels in U937 Cells by Combined Stimulation with Estradiol-17β and Vitamin K2 (Menaquinone 4) - Nishiguchi, Tomizo; Kobayashi, Takao; Sugimura, Motoi; Kobayashi, Hiroshi; Terao, Toshihiko (Seminars in Thrombosis and Hemostasis, 1999)