• Cruickshank, J.M., Gorlin, R. & Jennett, B. (1988) Air travel and thrombotic episodes: the economy class syndrome. Lancet, 2, 497498.
  • Ferrari, E., Chevallier, T., Chapelier, A. & Baudouy, M. (1999) Travel as a risk factor for venous thromboembolic disease: a case-control study. Chest, 115, 440444.
  • Hirsh, J. & O'Donnell, M.J. (2001) Venous thromboembolism after long flights: are airlines to blame? Lancet, 357, 14611462.
  • Kraaijenhagen, R.A., Haverkamp, D., Koopman, M.M.W., Prandoni, P., Piovella, F. & Büller, H. (2000) Travel and risk of venous thrombosis. Lancet, 356, 14921493.
  • Samama, M.M. (2000) An epidemiologic study of risk factors for deep vein thrombosis in medical outpatients: the Sirius study. Archives of Internal Medicine, 160, 34153420.
  • Scurr, J.H., Machin, S.J., Bailey-King, S., Mackie, I.J., McDonald, S. & Smith, P.D. (2001) Frequency and prevention of symptomless deep-vein thrombosis in long-haul flights: a randomised trial. Lancet, 357, 14851489.