MMR paper retraction

Following a hearing by the UK's General Medical Council, the Lancet has retracted the paper by Wakefield et al about the MMR vaccine and autism.
http://www.thelancet.com/journals/lancet/article/PIIS0140-6736(10)60175-7/fulltext

See the COPE guidelines on retraction (on this website) for more details about when and how COPE recommends editors should retract papers.