Interaction between blood type, smoking and factor V Leiden mutation and risk of venous thromboembolism: a Danish case-cohort study


Marianne Tang Severinsen, Department of Hematology, Aalborg Hospital, Aarhus University Hospital, Aalborg, Denmark.Tel.: +45 993 263 13. E-mail:


See also Lowe GDO. Epidemiology of venous thromboembolism: the need for large (including prospective) studies and meta-analyses. This issue, pp 2186–8 and Rosendaal FR. Etiology of venous thrombosis: the need for small original studies. This issue, pp 2189–90.