title: An instrument for measuring small flows during biliary tract surgery.
mesh_terms: D001662:Biliary Tract Surgical Procedures; D001698:Biomedical Engineering / Q000295:instrumentation / Q000379:methods; D006801:Humans; D012212:Rheology; D009803:Sphincter of Oddi / Q000503:physiopathology; D014159:Transducers