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APA Citation
Pierce, K. E., Naessig, S., Kummer, N., Larsen, K., Ahmad, W., Passfall, L., Krol, O., Bortz, C., Alas, H., Brown, A., Diebo, B., Schoenfeld, A., Raad, M., Gerling, M., Vira, S., & Passias, P. G. (2021). the Five-item Modified Frailty Index is Predictive of 30-day Postoperative Complications in Patients Undergoing Spine Surgery. Spine, 46(14), . http://access.bl.uk/ark:/81055/vdc_100142324961.0x000022