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LX and ZZ conceived the presented idea. LX wrote the letter. All authors read and approved the final manuscript.
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Xu, L., Zhang, Z. Risk factors analysis and nomogram construction for blood transfusion in elderly patients with femoral neck fractures undergoing hemiarthroplasty. International Orthopaedics (SICOT) 46, 2455–2456 (2022). https://doi.org/10.1007/s00264-022-05527-6
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DOI: https://doi.org/10.1007/s00264-022-05527-6