RT Journal Article SR Electronic T1 Duration of anticoagulant treatment for unprovoked deep-vein thrombosis – is prolonged long enough? JF Haematologica JO Haematologica FD Ferrata Storti Foundation SP 1300 OP 1301 DO 10.3324/haematol.2019.218909 VO 104 IS 7 A1 Huisman, Menno V. A1 Klok, Frederikus A. YR 2019 UL http://www.haematologica.org/content/104/7/1300.abstract AB