Comment on

• A comparison of six weeks with six months of oral anticoagulant therapy after a first episode of venous thromboembolism. Duration of Anticoagulation Trial Study Group.

  Schulman S, Rhedin AS, Lindmarker P, Carlsson A, Lärfars G, Nicol P, Loogna E, Svensson E, Ljungberg B, Walter H. Schulman S, et al. N Engl J Med. 1995 Jun 22;332(25):1661-5. doi: 10.1056/NEJM199506223322501. N Engl J Med. 1995. PMID: 7760866 Clinical Trial.
• The risk of a diagnosis of cancer after primary deep venous thrombosis or pulmonary embolism.

  Sørensen HT, Mellemkjaer L, Steffensen FH, Olsen JH, Nielsen GL. Sørensen HT, et al. N Engl J Med. 1998 Apr 23;338(17):1169-73. doi: 10.1056/NEJM199804233381701. N Engl J Med. 1998. PMID: 9554856
• Incidence of cancer after prophylaxis with warfarin against recurrent venous thromboembolism. Duration of Anticoagulation Trial.

  Schulman S, Lindmarker P. Schulman S, et al. N Engl J Med. 2000 Jun 29;342(26):1953-8. doi: 10.1056/NEJM200006293422604. N Engl J Med. 2000. PMID: 10874063 Clinical Trial.