http://www.sec.gov/Archives/edgar/data/1665650/000089109216019458/e72218_424b2.htm
http://www.sec.gov/Archives/edgar/data/1000275/000114036116089684/form424b2.htm
http://www.sec.gov/Archives/edgar/data/1506931/000119312516793085/d308507d424b4.htm
http://www.sec.gov/Archives/edgar/data/1002638/000119312516793095/d255332d424b3.htm
http://www.sec.gov/Archives/edgar/data/1611702/000161170216000248/finalprospectussupplement-.htm