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Effects of corona virus disease-19 control measures on air quality in North China

Xiangyu Zheng1, Bin Guo2,3, Jing He3

  • 1Guanghua School of Management Peking University Beijing P.R. China.

Environmetrics
|March 31, 2021
PubMed

Keywords:
difference in relative‐difference methodmeteorological adjustmenttreatment effects estimation

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