http://www.sec.gov/Archives/edgar/data/1070081/000104746919000191/a2237567z424b5.htm
http://www.sec.gov/Archives/edgar/data/1000275/000114036119001337/form424b5.htm
http://www.sec.gov/Archives/edgar/data/1526688/000119312519013497/d687480d424b5.htm
http://www.sec.gov/Archives/edgar/data/74615/000119312519013978/d674726d424b2.htm
http://www.sec.gov/Archives/edgar/data/1333493/000162828019000474/prospectusjan2019.htm
http://www.sec.gov/Archives/edgar/data/70502/000165495419000661/preliminarysupplement474.htm
http://www.sec.gov/Archives/edgar/data/70502/000165495419000671/finalsupplement473.htm