https://investor.ironwoodpharma.com/press-releases/press-release-details/2009/Ironwood-and-Astellas-Announce-Japan-Licensing-Agreement-for-Linaclotide/default.aspx
https://investor.ironwoodpharma.com/press-releases/press-release-details/2009/Ironwood-and-Astellas-Announce-Japan-Licensing-Agreement-for-Linaclotide/default.aspx