Shanghai Sixth People's HospitalOrganisationRORTrialsApplication of Ultrasound Tomography in the Diagnosis of Sarcopenia in Maintenance Hemodialysis Patients: A Cross-sectional StudyNo phase, Status unknown, 2026, 222 people, 17 Aug 2026, trialsearch.who.intPapersAugmented reality-assisted Tai Chi for adults with diabetes-associated cognitive impairment: study protocol for a randomised controlled trialBMJ open, 1 Oct 2026