ISSN: 1678-9741 - Open Access
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Manzur-Sandoval D, Echeverria-Ortuño M, Gopar-Nieto R, Rojas-Velasco G. Utility of the Charlson Comorbidity Index in the Preoperative Evaluation of Patients Undergoing Cardiac Surgery. Braz J Cardiovasc Surg. 2026;41(1):e20250151


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