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Grade repetition and bullying victimization in adolescents: A global cross-sectional study of the Program for International Student Assessment (PISA) data from 2018
- Qiguo Lian,
- Chunyan Yu,
- Xiaowen Tu,
- Minglin Deng,
- Tongjie Wang,
- Qiru Su,
- Xiayun Zuo
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- Published: November 11, 2021
- https://doi.org/10.1371/journal.pmed.1003846