Pogliacomi, F., A. Pellegrini, F. Tacci, M. F. Pedrini, C. Costantino, A. Pedrazzini, G. Pedrazzi, F. Lauretani, E. Vaienti, and F. Ceccarelli. “Risks of Subsequent Contralateral Fractures of the Trochanteric Region in Elderly”. Acta Bio Medica Atenei Parmensis, Vol. 87, no. 3, Jan. 2017, pp. 275-81, http://www.mattioli1885journals.com/index.php/actabiomedica/article/view/5936.