http://www.sec.gov/Archives/edgar/data/92122/000009212219000045/so424b2equityunitsfinalpro.htm
http://www.sec.gov/Archives/edgar/data/1545772/000104746919004767/a2239501z424b5.htm
http://www.sec.gov/Archives/edgar/data/1121286/000119312519220315/d790998d424b5.htm
http://www.sec.gov/Archives/edgar/data/1003410/000119312519221189/d781068d424b5.htm
http://www.sec.gov/Archives/edgar/data/89800/000119312519221218/d783835d424b5.htm