Plasma Levels of Factor VIIa Are Very Low in Neonates and Infants - Nonami, Kazuma; Yamamoto, Masakuni; Tanaka, Taeko; Miyata, Toshiyuki; Giddings, John C.; Yoshioka, Akira; Takahashi, Yukihiro (Thrombosis and Haemostasis, 1998)