Association between weekly physical education class frequency and depressive symptoms in middle school students
JIAO Jiayi, RONG Shuang, LUO Dan, LIU Ling, TAN Ting, XIANG Jingjing, LIU Shuang
Chinese Journal of School Doctor . 2025, (10): 737 -741 .  DOI: 10.20161/j.cnki.32-1199/R.20250101