http://www.sec.gov/Archives/edgar/data/1000275/000114036117015820/form424b2.htm
http://www.sec.gov/Archives/edgar/data/1614184/000119312517123620/d296512d424b4.htm
http://www.sec.gov/Archives/edgar/data/1110805/000119312517123661/d373137d424b5.htm
http://www.sec.gov/Archives/edgar/data/1702777/000119312517124542/d370123d424b5.htm
http://www.sec.gov/Archives/edgar/data/1691303/000119312517124705/d501786d424b4.htm