TY - JOUR AN - 91 AU - Ascenti,G. AU - Zimbaro,G. AU - Mazziotti,S. TI - Usefulness of power Doppler and contrast-enhanced sonography in the differentiation of hyperechoic renal masses. JO - Abdom Imaging PY - 2001 VL - 26 SP - 654-660 M2 - 654 DO - 10.1007/s00261-001-0025-8 ER -