title: [Methods of measuring the patency of Pudenz-Heyer valve with the aid of a radiometer and Technetium 99m Tc].
mesh_terms: D002557:Cerebrospinal Fluid Shunts / Q000379:methods*; D006801:Humans; D011874:Radiometry; D013667:Technetium
chemical_list: D013667:Technetium
vernacular_title: Sposób pomiaru drozności zastawek Pudenza-Heyera przy uzyciu radiometru i izotopu technetu 99mTc