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APA Citation
Feng, Z., Wang, T., Liu, P., Chen, S., Xiao, H., Xia, N., Luo, Z., Wei, B., & Nie, X. (2017). efficacy of Various Scoring Systems for Predicting the 28-Day Survival Rate among Patients with Acute Exacerbation of Chronic Obstructive Pulmonary Disease Requiring Emergency Intensive Care. Canadian respiratory journal, 2017, . http://access.bl.uk/ark:/81055/vdc_100159423208.0x000047