PNAS论文下载求助

论文下载求助，论文信息：Juan Palacios, Yichun Fan, Erez Yoeli, Jianghao Wang, Yuchen Chai, Weizeng Sun, David G. Rand, and Siqi Zheng (2022).Encouraging the resumption of economic activity after COVID-19: Evidence from a large scale-field experiment in China. PNAS 119(5): 1-8 https://doi.org/10.1073/pnas.2100719119
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