Declaration of competing interest statement was not included in the published version.
The appropriate declaration of competing interest statement, provided by the authors, is included below.
Declaration of competing interest: The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Jiahua Jin, Liqin Ding, and Biye Wang are employed by the Shanghai Zhonghua Pharmaceutical Co., Ltd. This work was supported by the research grant from the Joint Project of Shanghai Zhonghua Pharmaceutical Co., Ltd. and Guangdong Pharmaceutical University (HTDJ2016044). The Longhu Rendan was obtained from Shanghai Zhonghua Pharmaceutical Co., Ltd ensured the smooth conduct of the study. The opinions expressed in this study are those of the authors and do not necessarily represent those of Shanghai Zhonghua Pharmaceutical Co., Ltd. All researchers retained complete independence in the conduct of this study. The company had no influence on the results of the study. Other authors declare that there are no competing interests.
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