Malposition of Blood Sampling Catheter in the Polystan OxygenatorsD. Hjorth Hansen, F. S. Joyce, E. Bisgaard-Frantzen, K. M. Christensen, N. Boye and K. P. SzczepanskiJ Extra Corpor Technol, 13 3 (1981) 204-208DOI: https://doi.org/10.1051/ject/1981133204