"Effect of 3.2% vs. 3.8% Sodium Citrate Concentration on Routine Coagulation Testing"
Adcock, D.M., Kressin, D. and Marlar, R.A.
Clin Pathol 1997; 107:105-110.

"Calculation Curve for INR Determination"
Brien, William F., J.C. Baskerville, D.A. Taberner and L. Crawford.
Am J Clin Pathol 1999; 111: 193-201.

"Decision Analytic and Cost-Effectiveness Issues Concerning Anticoagulant Prophylaxis in Heart Disease"
Eckman, M.H., H.J. Levine, S.G. Pauker.
Chest 1992; 102:538S-548S.

"Effect of Laboratory Variation in the Prothrombin-Time Ratio on the Results of Oral Anticoagulation Therapy"
Eckman, M.H., H.J. Levine, S.G. Pauker.
New England Journal of Medicine 1993; 329:696-702.

"College of American Pathologists Conference XXXI on Laboratory Monitoring of Anticoagulation Therapy"
Fairweather, R.B., J. Ansell, et al.
Arch Pathol Lab Med 1998; 122:768-781.

"A Comparison of Point-of-Care Instruments Designed for Monitoring Oral Anticoagulation with Standard Laboratory Methods"
Gosselin, R., Owings, J.T., White, R.H., et.al.
Thromb Haemost 2000; 83:698-703.

"Oral Anticoagulants. Mechanism of Action, Clinical Effectiveness, and Optimal Therapeutic Range"
Hirsh, J. J.E. Dalen, D. Deykin, L. Poller.
Chest 1992; 102:312S-326S.

"The International Normalized Ratio, A Guide to Understanding and Correcting the Problems"
Hirsh, J., L. Poller.
Arch Intern Med 1994; 154:282-288.

"An International Collaborative Study on the INR Calibration of Freeze-Dried Reference Plasmas"
Hubbard, A.R., et al.
British Journal of Haemataology 1999; 104:455-460.

"Hemorrhagic Complications of Anticoagulant Treatment"
Lavine, M.N., J. Hirsh, S. Landefield, G. Raskob.
Chest 1992; 102:352S-363S.

"Oral Anticoagulation Monitoring Study Group: Prothrombin Measurement Using a Patient Self-Testing System"
Am J Clin Pathol 2001; 115:280-287.

"Oral Anticoagulation Monitoring Study Group: Point of Care Prothrombin Time Measurement for Professional and Patient Self-Testing Use"
Am J Clin Pathol 2001; 115:288-296.

"International Sensitivity Index Calibration of the Near-Patient Testing Prothrombin Time Monitor, ProTime"
Tripodi, A., Chantarangkul, V., Bressi, C., Mannucci, P.
Am J Clin Pathol 2003; 119:241-245.

"Pharmacology and Drug Utilization, Changes in Plasma Warfarin Levels and Variations In Steady-State Prothrombin Times"
White, R.H., H. Zhou, P. Ramano, D. Mungall.
Clin Pharmacol ther 1995; 58:588-93.