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Preoperative hypocalcemia predicts postoperative complications in older orthopedic patients: A multicenter cohort study
- Doudou Li,
- Ting Zhang,
- Yanmei Ning,
- Jiacong Miao,
- Jiana Shi,
- Ying Hu
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- Published: March 4, 2026
- https://doi.org/10.1371/journal.pone.0340876