Page 1/20 Use of second anti-TNF agent in inｧammatory bowel disease when ｦrst agent failed: A South African retrospective study Ernst Fredericks (  esfredericks@sun.ac.za ) Stellenbosch University Abigail Titus Independent researcher Suereta Fortuin Stellenbosch University Shiraaz Gabriel Stellenbosch University Mashiko Setshedi University of Cape Twon Research Article Keywords: Inｧammatory bowel disease (IBD), Anti-TNF agents, South African Gastroenterology Society (SAGES), Crohn’s disease (CD) Posted Date: May 21st, 2022 DOI: https://doi.org/10.21203/rs.3.rs-411096/v2 License:   This work is licensed under a Creative Commons Attribution 4.0 International License. Read Full License