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Usefulness of endoscopic ultrasound-guided fine needle aspiration in the diagnosis of hepatic, gallbladder and biliary tract Lesions 
Ghassan M Hammoud, Ashraf Almashhrawi, Jamal A Ibdah 
World J Gastrointest Oncol 6(11):420-429. Published online Nov 15, 2014. doi: 10.4251/wjgo.v6.i11.420
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