http://www.sec.gov/Archives/edgar/data/1604643/000104746918001771/a2234900z424b4.htm
http://www.sec.gov/Archives/edgar/data/1000275/000114036118013818/form424b2.htm
http://www.sec.gov/Archives/edgar/data/1000275/000114036118013850/form424b2.htm
http://www.sec.gov/Archives/edgar/data/1662253/000114036118013876/s001980x11_424b4.htm
http://www.sec.gov/Archives/edgar/data/1713683/000119312518085981/d400527d424b4.htm