Arvidsson, B., et al. "Risk Factors for Venous Thromboembolism Following Prolonged Air Travel: A "Prospective' Study." Vascular Surgery 1999: 537-44.

Came, Barry. "Danger in Coach Class." MacLean's 6 Nov. 2000: 86-88.

Cruickshank, M., et al. "Air Travel and Thrombotic Episodes." The Lancet 332 (1998): 497.

Davis, Robert. "Airlines Could be Sued for Blood-clot Threat," USA Today 10 January 2001: A1

FamilyCircle 13 March 2001

Ferrari, E., et al. "Travel as a Risk for Venous Thromboembolic Disease." Chest 115 (1999): 440-44.

Ferriman, Annabel. "Travelers Should be Warned of Thrombosis Risk." British Medical Journal 321 (2000): 1310.

Kakkar, V. "Prevention of Venous Thrombosis and Pulmonary Embolism." American Journal of Cardiology 65 (1990): 50C-54C.

Landgraf H., et al. "Economy Class Syndrome: Rheology, Fluid Balance and Lower Leg Edema During a Simulated 12- Hour Long Distance Flight." Aviation, Space, and Environmental Medicine 65 (1994): 930-35.

Mercer, A., Brown, J. "Venous Thromboembolism Associated with Air Travel: A Report of 33 Patients." Aviation, Space, and Environmental Medicine 69 (1998): 154-57.

Mohler, Stanley R. "Blood Clotting Presents Serious Medical Problems for Passengers and Crews, Especially on Long Flights." Flight Safety Foundation, Human Factors & Aviation Medicine 44 (1997).

Prandoni, P., et al. "The Long-Term Clinical Course of Acute Deep Venous Thrombosis." Annals of Internal Medicine 125 (July 1996): 1-7.

Sahiar, F., Mohler, S. "Economy Class Syndrome." Aviation, Space, and Environmental Medicine 65 (1994): 957-60.

Shuster, Sam. "Jet Flight Leg." The Lancet 347 (1996): 832-33.

Silver, D. "An Overview of Venous Thromboembolism Prophylaxis." American Journal of Surgery 161 (1991): 537-40.

Squires, Sally, "Long Flights Increase Risk of Blood Clots," Washington Post 25 March 2001: L1

Symington, I., Stack, B. "Pulmonary Thromboembolism after Travel." British Journal of the Chest 71 (1977): 138-40.