TY - JOUR AU - Menzel, J; Hoepffner, N; Sulkowski, U TI - Polypoid tumors of the major duodenal papilla: preoperative staging with intraductal US, EUS, and CT--a prospective, histopathologically controlled study JO - Gastrointest Endosc VL - 49 PY - 1999 DO - 10.1016/S0016-5107(99)70012-X L3 - PubMed-ID: 10049419 SP - 349 EP - 357 N1 - et al. ER -