Larsen, Kristian, et al. “Accelerated Perioperative Care and Rehabilitation Intervention for Hip and Knee Replacement Is Effective: A Randomized Clinical Trial Involving 87 Patients With 3 Months of Follow-up”. Acta Orthopaedica, vol. 79, no. 2, Jan. 2008, pp. 149-5, doi:10.1080/17453670710014923.