Risk of Deep Vein Thrombosis Recurrence: High Negative Predictive Value of D-dimer Performed during Oral Anticoagulation - Fattorini, Annalisa; Crippa, Luciano; D’Angelo, Silvana Vigano; Pattarini, Elisabetta; D’Angelo, Armando (Thrombosis and Haemostasis, 2002)