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FG and FJ had full access to all the data in the study and take responsibility for the integrity of the data and the accuracy of the data analysis. Concept and design: FJ, HL, TL, YL and YLT. Acquisition, analysis, or interpretation of data: FG, JR and YLT. Drafting of the manuscript: FG, HL and YLT. Critical revision of the manuscript for important intellectual content: All authors. Statistical analysis: FG and YLT. Obtained funding: FJ and HL. Supervision: HL. All authors contributed to and approved the final manuscript as submitted.
The authors thank the Beijing Medical and Health Foundation (MH180924) and the National Clinical Key Specialty Capacity Building Project who funded this research, and we also appreciate the efforts of the hospital administers who facilitated the survey.
The authors declare that they have no competing interests.
Feng Geng and Feng Jiang are co-first author
This study was supported in part by the Beijing Medical and Health Foundation (Grant No. MH180924) and the National Clinical Key Specialty Capacity Building Project. Beijing Medical and Health Foundation (Grant No. MH180924) supported the design of the study and collection of data. The National Clinical Key Specialty Capacity Building Project supported the analysis and interpretation of data, also in preparing the manuscript for some authors.
© The Author(s) 2020