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APA Citation
Xiang, L., Su, Z., Liu, Y., Zhang, X., Li, S., Hu, S., & Zhang, H. (2018). effect of family socioeconomic status on the prognosis of complex congenital heart disease in children: an observational cohort study from China. Lancet, 2, 430–439. http://access.bl.uk/ark:/81055/vdc_100064055925.0x000001