http://www.sec.gov/Archives/edgar/data/1300485/000104746919000246/a2237604z424b5.htm
http://www.sec.gov/Archives/edgar/data/1000275/000114036119001554/form424b2.htm
http://www.sec.gov/Archives/edgar/data/1000275/000114036119001573/form424b2.htm
http://www.sec.gov/Archives/edgar/data/1000275/000114036119001598/form424b2.htm
http://www.sec.gov/Archives/edgar/data/202811/000119312519016655/d686873d424b5.htm
http://www.sec.gov/Archives/edgar/data/70502/000165495419000773/amendedfinalsupplement473.htm