Endosonography-Guided Fine-Needle Aspiration Versus "Key-Hole Biopsy" in the Diagnostics of Upper Gastrointestinal Subepithelial Tumors. A Prospective Randomized Interventional Study

Biomedical papers of the Medical Faculty of the University Palacky, Olomouc, Czechoslovakia - Czech Republic
doi 10.5507/bp.2019.013