Ghost busting-taking the sheet off the ghost.

The article offers the authors insights on ghost authorship in biomedical publishing. Topics discussed include the criteria to become an author from the policy of International Committee of Medical Journal Editors (ICMJE), the study published by the "British Medical Journal" (BMJ) on the assessment of prevalence of honorary authorship and ghost authorship in general medical journals, and the American College of Rheumatology (ACR) Annual Meeting on October 27, 2013.