The outcome of subsequent revisions after primary total hip arthroplasty in 1,049 patients aged under 50 years : a single-centre cohort study with a follow-up of more than 30 years - Kuijpers, M FL; Colo, E; Schmitz, M WJL; Hannink, G; Rijnen, W HC; Schreurs, B W (Bone Joint J, 2022)