The efficacy of sublingual immunotherapy with dermatophagoides farinae drops for mite allergen⁃induced allergic rhinitis at different treatment courses in children 

LIU Fei, LI Shuo, LIANG Junyi, HUANG Dan⁃ ling, LUO Bin, XING Xiao, WANG Zhiwei.
The Journal of Practical Medicine . 2021, (12): 1603 -1606 .  DOI: 10.3969/j.issn.1006⁃5725.2021.12.018