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APA Citation
Sze, S., Pellicori, P., Zhang, J., Weston, J., Squire, I. B., & Clark, A. L. (n.d.). the efficacy of using a holistic 4-domain approach in evaluating frailty in ambulatory patient with heart failure. European heart journal, 42, . http://access.bl.uk/ark:/81055/vdc_100144499007.0x000052