Erratum: Isometric hip strength impairments in patients with hip dysplasia are improved but not normalized 1 year after periacetabular osteotomy: a cohort study of 82 patients - Jacobsen, Julie Sandell; Jakobsen, Stig Storgaard; Søballe, Kjeld; Hölmich, Per; Thorborg, Kristian (Acta Orthopaedica, 2021)