@misc{misc41f632aa, title = {The use of levovist contrast in color doppler evaluation of vascular invasion in pancreatic and biliary tumor}, author = {Saito, Osmar C. and Machado, Márcio M. and Jukomura, José and Oliveira, Ilka R. S. and Machado, Marcel Cerqueira César and Cerri, Giovanni Guido}, year = {2000}, booktitle = {Congress of World Federation for Ultrasound in Medicine and Biology} }