Endoscopic ultrasonography-guided fine needle aspiration (EUS-FNA) vs endoscopic ultrasonography-guided trucut biopsy (EUS-TNB) in the diagnosis of gastric subepithelial tumors. Definitive results of a prospective and comparative study. - Fernandez-Esparrach,G.; Sendino,O.; Pellise,M. (Endoscopy, 2009)