We published 2 original articles in the July 24, 2000 issue of theArchives of Internal Medicine.1,2 Each original article reports the findings of a double-blind randomized clinical trial. These 2 studies had identical in-hospital prophylaxis regimens.
Hull R, Pineo G, Francis C, Bergqvist D, Fellenius C, Mah A, Brant R. Dalteparin vs Warfarin in Hip Arthroplasty Patients—Reply. Arch Intern Med. 2001;161(5):771–778. doi: