Article

Detection of protamine and heparin after termination of cardiopulmonary bypass by thrombelastometry (ROTEM): results of a pilot study.

Anesth. Analg. 2009 Mar 1;108(3):743-50.
Article

Protamine reversal of heparin affects platelet aggregation and activated clotting time after cardiopulmonary bypass.

Anesth. Analg. 1998 Oct 1;87(4):781-5.
Randomized Controlled Trial

Heparin and protamine titration do not improve haemostasis in cardiac surgical patients.

Can J Anaesth. 1998 Jan 1;45(1):10-8.