QUOTE
There is no formal process to begin working with Wikipedia. The quality of all content is subjected to a number of checks: Bots (computer programs) look at all new changes and revert obviously poor edits; a group of volunteers go over all new changes to the encyclopedia (known as Recent Changes Patrol); and some content at certain points in time is locked into place to prevent its removal.
Wow, it sounds like Wikipedia is very carefully edited! I now trust all of its content to advise my doctors, especially before surgery.