http://www.sec.gov/Archives/edgar/data/1267813/000104746918007641/a2237350z424b5.htm
http://www.sec.gov/Archives/edgar/data/1000275/000114036118045086/form424b2.htm
http://www.sec.gov/Archives/edgar/data/1383084/000119312518348912/d672738d424b3.htm
http://www.sec.gov/Archives/edgar/data/1328237/000119312518348922/d671182d424b3.htm