http://www.sec.gov/Archives/edgar/data/740260/000104746917001946/a2231501z424b2.htm
http://www.sec.gov/Archives/edgar/data/1699234/000114420417016482/v462505_424b5.htm
http://www.sec.gov/Archives/edgar/data/886982/000119312517095161/d362233d424b2.htm
http://www.sec.gov/Archives/edgar/data/886982/000119312517095188/d359481d424b2.htm
http://www.sec.gov/Archives/edgar/data/1383149/000119312517095272/d305540d424b3.htm