S910 Iron Deficiency Is Common After Total Proctocolectomy With Ileal Pouch Anal Anastomosis in Patients With Ulcerative Colitis. (October 2022) - Ahmed, Taqwa; Plietz, Michael; Khaitov, Sergey; Sylla, Patricia; Greenstein, Alexander J.; Dubinsky, Marla C.; Kayal, Maia