http://www.sec.gov/Archives/edgar/data/1540947/000104746918004627/a2236058z424b3.htm
http://www.sec.gov/Archives/edgar/data/1540947/000104746918004672/a2236102z424b2.htm
http://www.sec.gov/Archives/edgar/data/1346302/000119312518199679/d547651d424b4.htm
http://www.sec.gov/Archives/edgar/data/1740450/000153949718000944/n1258_424b2-x11.htm