Combined use of endosonography and endoscopic retrograde cholangiopancreatography in the same session - Ünsal, Belkıs; Alper, Emrah; BAYDAR, Behlül; Aslan, Fatih; Akpınar, Zehra; BUYRAÇ, Zafer; AKSÖZ, Mehmet Kadir (Turkish Journal of Gastroenterology, 2011)