Service east of McCowan Road to Markham Stouffville Hospital was to begin on July 1 , 2007 .
Service east of McCowan Road to Markham Stouffville Hospital was postponed to January 27 , 2008 .
Service east of McCowan Road to Markham Stouffville Hospital was to begin on July 1 , 2007 , but was postponed to January 27 , 2008 .