Acknowledgments
This study was supported by the Precision Medicine Research of the National Key Research and Development Plan of China (grant no 2016YFC0905800). We thank the study participants of the China Alliance of Research on Respiratory Allergic Disease who made this analysis possible. We would like to thank Professor Yiwu Zheng and Professor Xuxin Lai for their cooperation and suggestions to the manuscript; Professor Mei Jiang (Guangzhou Institute of Respiratory Health) for assistance in statistical considerations; Professor Zhaowei Yang (Guangzhou Medical University) for help in editing the figures. Professor Ming Liao (Guangdong Academy of Agricultural Sciences) for assistance in Artemisia desertorum data collection.