http://www.sec.gov/Archives/edgar/data/1665650/000089109218001059/e77637_424b2.htm
http://www.sec.gov/Archives/edgar/data/33745/000095015718000209/form424b5.htm
http://www.sec.gov/Archives/edgar/data/1075415/000104746918000664/a2234468z424b5.htm
http://www.sec.gov/Archives/edgar/data/1000275/000114036118005644/form424b2.htm
http://www.sec.gov/Archives/edgar/data/1000275/000114036118005678/form424b2.htm
http://www.sec.gov/Archives/edgar/data/1499357/000119312518036094/d537039d424b5.htm