Production of platelet-rich plasma gel from elderly patients under antithrombotic drugs: Perspectives in chronic wounds care oleh M. Velier, J. Magalon, A. Daumas, M. Cassar, P. Francois, A. Ghazouane, C. Philandrianos, B. Bertrand, C. Frere, D. Bernot, P. Villani, F. Dignat George, F Sabatier