Translocation, activation and association of protein-tyrosine kinase (p72syk) with phosphatidylinositol 3-kinase are early events during platelet activation - Yanagi, S; Sada, K; Tohyama, Y; Tsubokawa, M; Nagai, K; Yonezawa, K; Yamamura, H (Eur J Biochem, 1994)