. 2021 Jun 17;9:692849. doi: 10.3389/fped.2021.692849
Copyright © 2021 Li, Yan, Xiao, Zhang, Huang, Xiang, Zheng, Yao, Zang, Zhu, Li and Lu.
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Figure 1.
Flow diagram of study population. HLH, haemophagocytic lymphohistiocytosis.