Barriers to using warfarin in non-valvular atrial fibrillation

Unfortunately, in the printed journal, the order of authors in this letter by Melina Gattellari and colleagues (BMJ 2006;332:303-4, 4 Feb) was changed from the order submitted by the authors. The letter was first posted on our website as a rapid response with the correct order (Melina Gattellari, John M Worthington, Nicholas A Zwar, Sandy Middleton). In the printed journal, we switched Worthington and Zwar in order to group authors by address, which saves space. This reflects our policy with letters, and we intend to make this policy clearer on our website.