OSMANOĞLU, N., SONGÜR, Y., BİRCAN, S., & KAPUCUOĞLU, N. (2011). Comparison of 19- and 22-gauge needles in EUS-guided fine needle aspiration in patients with mediastinal masses and lymph nodes. Turkish Journal of Gastroenterology, 22(5), 472–478. https://doi.org/10.4318/tjg.2011.0322