Databases of clinical practice guidelines

Clinical practice guidelines are systematically developed recommendations to assist in decision-making about appropriate health care for specific clinical circumstances. Depending upon the methodology used, they can be based on consensus, expert opinion, or evidence. Traditionally, these documents were considered as grey literature because of the difficulty in locating them. The arrival of Internet has substantially improved chances for locating them. Numerous institutions and professional associations have facilitated access to them through specialised databases and search engines.