Endoscopic Ultrasonography and Endoscopic Ultrasound-Guided Fine-Needle Aspiration Biopsy for the Diagnosis of Lower Digestive Tract Disease
1997 ◽
Vol 7
(2)
◽
pp. 221-235
◽
2003 ◽
Vol 15
(2)
◽
pp. 93-99
◽