1. Introduction of soft cannula into artery by direct percutaneous puncture;Barr;Angiology,1960
2. Percutaneous catheterization of peripheral arteries as a method for blood sampling;Bernéus;Scand. J. clin. Lab. Invest.,1954
3. A small plastic tubing technique for right and left heart catheterization;Fitzpatrick;Fed. Proc.,1949
4. Development of apparatus and methods for roentgen studies in haemodynamics;Gidlund;Acta radiol. (Stockh.),1956
5. A comparison of the tissue reactions to plastic materials;Harrison;Arch. Surg. (Chicago),1957