Our study included children who were clinically diagnosed as HP in the Children's Hospital of Zhejiang University School of Medicine from July 2017 to July 2021. Clinical data, including previous history, birth history, family history, clinical manifestations, biochemical indicators, chest HRCT, diagnosis and treatment, and outcome, were, respectively, collected and analyzed in detail.
This study was approved by the ethics committee of the children's hospital affiliated to Zhejiang University School of Medicine and informed consent was obtained from the children's parents.
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