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APA Citation
Feng, X., Yu, H., Yi, X., Wang, S., Li, G., & Lin, L. (2017). the relationship between the perfusion index and precision of noninvasive blood component measurement based on dynamic spectroscopy. Analytical methods, 9(17), 2578–2584. http://access.bl.uk/ark:/81055/vdc_100046164856.0x000010