Moser KM, Fedullo PF, Littejohn JK, et al. Frequent asymptomatic pulmonary embolism in patients with deep venous thrombosis.JAMA 1994; 271: 223–225.
Dalen JE, Alpert JS. Natural history of pulmonary embolism. Prog Cardiovasc Dis 1975; 17: 259–270.
Stein PD, Matta F. Epidemiology and incidence: the scope of the problem and risk factors for development of venous thromboembolism.Crit Care Clin 2011; 27(4): 907.
Weberova D, Weber P, Kubesova H, et al. Occurrence of pulmonary embolism among 260 in-patients of acute geriatric department aged 65+ years in 2005–2011. Adv Gerontol 2012; 25(3): 506–512.
Nordstrom M, Lindblad B. Autopsy-verified venous thromboembolism within a defined urban population – the city of Malmo,Sweden. APMIS 1998; 106: 378–384.
Oger E. Incidence of venous thromboembolism: a community based study in Western France. EPI-GET BP Study Group. Groupe d’Etude de la Thrombose de Bretagne Occidentale. Thromb Haemost 2000; 83: 657–660.
Hansson PO, Welin L, Tibblin G, et al. Deep vein thrombosis and pulmonary embolism in the general population. ‘The Study of Men Born in 1913’. Arch Intern Med 1997; 157: 1665–1670