Sonographic evaluation of focal nodular hyperplasia (FNH) of the liver with a transpulmonary galactose-based contrast agent (Levovist). - Uggowitzer,M.; Kugler,C.; Gröll,R.; Mischinger,H.J.; Stacher,R.; Fickert,P.; Weiglein,A. (Br J Roentgenol, 1998)