Heme oxygenase-1 accelerates tumor angiogenesis of human pancreatic cancer - Makoto Sunamura; Dan G. Duda; Maivel H. Ghattas; Lucian Lozonschi; Fuyuhiko Motoi; Jun-Ichiro Yamauchi; Seiki Matsuno; Shigeki Shibahara; Nader G. Abraham (Angiogenesis, 2003)