Comparative Evaluation of the Performance of Different Thromboplastin Reagents on Prothrombin Time and Factorial Assays in Situations of Isolated Extrinsic Pathway Factor Deficiency or Liver Damage.

"Comparison of prothrombin time results obtained with the different thromboplastins reagent for subgroup (extrinsic pathway factor and for those with hepatocellular insufficiency) by a regression line and a Bland-Altman representation.~Comparison of extrinsic pathway factor assays obtained with the different thromboplastins reagent for each subgroup by a regression line and a Bland-Altman representation.~Evaluation and determination of the sensitivity of the prothrombin time according to the activity rate obtained for each factor (for each reagent)."