Understanding <scp>anti‐TNF</scp> treatment failure: does serum triiodothyronine‐to‐thyroxine (<scp>T3</scp>/<scp>T4</scp>) ratio predict therapeutic outcome to <scp>anti‐TNF</scp> therapies in biologic‐naïve patients with active luminal Crohn's disease?
Alimentary pharmacology & therapeutics