title: Ultrasonically-guided fine-needle puncture in gastroenterology.
mesh_terms: D001707:Biopsy, Needle / Q000295:instrumentation / Q000379:methods*; D003581:Cytodiagnosis; D005767:Gastrointestinal Diseases / Q000175:diagnosis*; D006801:Humans; D011677:Punctures / Q000379:methods; D014463:Ultrasonography