CFT+ With a Subsequent Interdisciplinary Pain Management Program (IPMP) If Needed Versus IPMP Alone for Patients With Severe Disabling Chronic LBP: Pragmatic Patient-Blinded RCT With Economic Analysis - Henrik Bjarke Vaegter; Anne Smith; Jannick Vaaben Johansen; Irene Stegemejer; Kira Søndberg Fuglsang; Jesper Fredslund Pedersen; Liza Sopina; Rob Schutze; Peter O’Sullivan; Peter Kent; Gitte Handberg; Francis Fatoye; et al. (Journal of Orthopaedic & Sports Physical Therapy, 2026)