AUTHOR=Tan Qiaoyin , Li Jiayu , Yin Yanmin , Shao Weide TITLE=The Role of Growth Factors in the Repair of Motor Injury JOURNAL=Frontiers in Pharmacology VOLUME=13 YEAR=2022 URL=https://www.frontiersin.org/journals/pharmacology/articles/10.3389/fphar.2022.898152 DOI=10.3389/fphar.2022.898152 ISSN=1663-9812