Acceptance and commitment therapy for fatigue interference in advanced gastrointestinal cancer and caregiver burden: protocol of a pilot randomized controlled trial. - Mosher, Catherine E.; Secinti, Ekin; Kroenke, Kurt; Helft, Paul R.; Turk, Anita A.; Loehrer, Patrick J.; Sehdev, Amikar; Al-Hader, Ahmad A.; Champion, Victoria L.; Johns, Shelley A. (Pilot & Feasibility Studies, 2021)