Treatment of hypothyroidism with levothyroxine plus slow-release liothyronine: a study protocol for a randomized controlled double-blinded clinical trial. - Azizi, F.; Amouzegar, A.; Abdi, H.; Tohidi, M.; Masoumi, S.; Khalili, D.; Mehrabi, Y.; Zadehvakili, A.; Hedayati, M.; Momenan, A. A.; Mehran, L. (Trials, 2025)