External links External links on Wikipedia are supposed to be encyclopedic in nature and useful to a worldwide audience Please read the external links policy and perhaps the specific rules for medicine related articles before adding more external links The following kinds of links are inappropriate Online discussion groups or chat forums Personal webpages and blogs Multiple links to the same website Fundraising events or groups Websites that are selling things e g books or memberships I realize that some links are helpful to certain users but they still do not comply with Wikipedia policy and therefore must not be included in the article There are a lot of links at the end of this article and it would be appropriate for the regular editors to audit them and reduce them to a small list of the most encyclopedic links