TY - JOUR AU - Polakow, J; Ladny, J R; Dzieciol, J TI - Ultrasound guided percutaneous fine-needle biopsy of the liver: efficacy of color doppler sonography JO - Hepatogastroenterology VL - 45 PY - 1998 SP - 1829 EP - 1830 N1 - et al. ER -