D3 phosphoinositides and outside-in integrin signaling by glycoprotein IIb-IIIa mediate platelet actin assembly and filopodial extension induced by phorbol 12-myristate 13-acetate - Hartwig, JH; Kung, S; Kovacsovics, T; Janmey, PA; Cantley, LC; Stossel, TP (J Biol Chem, 1996)