https://investor.ironwoodpharma.com/press-releases/press-release-details/2016/Ironwood-Pharmaceuticals-Closes-US-Transaction-with-AstraZeneca-for-Lesinurad/default.aspx
https://investor.ironwoodpharma.com/press-releases/press-release-details/2016/Ironwood-Pharmaceuticals-Closes-US-Transaction-with-AstraZeneca-for-Lesinurad/default.aspx