Tavoni, V., Sisini, F., Di Domenico, G., Mohammed, N., Gadda, G., Calderoni, F. and Gambaccini, M. (2017) “Conventional echo color Doppler versus ULA-OP in the assessment of venous flow model”, Veins and Lymphatics, 6(1). doi: 10.4081/vl.2017.6841.