Content Validity and Psychometric Evaluation of the Crohn's Symptom Severity (CSS) Questionnaire in Patients with Moderately to Severely Active Crohn's Disease.
Edouard LouisWan-Ju LeeLeighann Litcher-KellySarah OllisEmma PranschkeKristina FitzgeraldAna Paula LacerdaEzequiel NeimarkYuri Sanchez GonzalezJulian PanesPublished in: Advances in therapy (2024)
NCT03105128 (registration date 4 April 2017).