Infliximab-Responsive Severe Ulcerative Colitis With Pyoderma Gangrenosum After IL-6 and IGF-1 Blockade. - Onishi, Shinobu; Otagiri, Shinsuke; Shinkai, Akihiro; Watanabe, Mika; Tanaka, Sho; Fujihata, Kenta; Aoyama, Keiya; Inoue, Ayano; Katsurada, Takehiko; Sakamoto, Naoya (ACG Case Reports Journal, 2026)