Comparison Between Black Top CA510 and Flip Top FT CA510 Test Tubes in the Hemochron Blood Coagulation Timing SystemFrancisco Robles, Anthony J. DelRossi, Jonathan H. Cilley, Sidney J. Fuller, Robert D. Dunmire and Roger A. VertreesJ Extra Corpor Technol, 21 (1989) 15-18DOI: https://doi.org/10.1051/ject/198921S015