Thrombopoietin enhances the αIIb β3-dependent adhesion of megakaryocytic cells to fibrinogen or fibronectin through PI 3 kinase - Zauli, G; Bassini, A; Vitale, M; Gibellini, D; Celeghini, C; Caramelli, E; Pierpaoli, S; Guidotti, L; Capitani, S (Blood, 1997)