Wolf, O., Mukka, S., Notini, M., Möller , M., Hailer, N. P., & DUALITY GROUP. (2020). Study protocol: The DUALITY trial—a register-based, randomized controlled trial to investigate dual mobility cups in hip fracture patients. Acta Orthopaedica, 91(5), 506–513. https://doi.org/10.1080/17453674.2020.1780059