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Table 2 The time line after unification

From: A cross-sectional study on the impact of the prevention and control response of the COVID-19 pandemic on minor’s orthopedic trauma in Shanghai

 

2018

2019

2020

Before the response

01/21–02/14

01/12–02/03

01/01–01/23

First-level response

02/15–04/13

02.04–04/02

01/24–03/22

Second-level response

04/14–05/29

04/03–05/18

03/23–05/07

Third-level response

05/30–06/30

05/19–06/30

05/08–06/30