Bierman, H.R.: Selective Arterial Catheterization: Diagnostic, Therapeutic, Investigative . C. C Thomas, Springfield, 1969.
2.
Wendth, A.J., Moriarty, D.J., Cross, V.F., Vitale, R., and Lopez, F.: "Knotting" of a Pigtail Catheter, and its Successful Removal. Angiology22: 262-266, 1971.
3.
Nicolas, F., Fenig, F., and Richter, R.M.: Knotting of Subclavian Central Venous Catheter, J.A.M.A.214: 373-374,1970.
4.
Young, D.A., and Maurer, R.M.: Successful Manipulation of a Knotted Intravascular Catheter Allowing Non-Surgical Removal. Radiology94: 155, 1970.