relating pr on april 22, 2010 http://finance.yahoo.com/news/Pfizer-Discontinues-Phase-3-bw-3518886287.html?x=0&.v=1 and this http://www.reuters.com/article/idCNSGE63L0LU20100422?rpc=44 1 yr chart http://finance.yahoo.com/q/bc?s=DCTH+Basic+Chart&t=1y