The Lancet has a significant readership throughout the world with a high impact factor. It publishes original research articles, review articles ("seminars" and "reviews"), editorials, book reviews, correspondences, amidst other regulars such as news features and case reports. The Lancet is considered to be one of the "core" general medical journals, the others being the New England Journal of Medicine, the Journal of the American Medical Association, and the British Medical Journal. The Lancet's impact factor is currently ranked #2 among general medical journals.