http://www.sec.gov/Archives/edgar/data/1651308/000104746916009999/a2227243z424b4.htm
http://www.sec.gov/Archives/edgar/data/70502/000114420416078642/v430206_424b5.htm
http://www.sec.gov/Archives/edgar/data/83246/000114420416078748/v430534_424b2.htm
http://www.sec.gov/Archives/edgar/data/1357369/000119312516448578/d131347d424b2.htm