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. 2021 Nov 16;52(1):22–35. doi: 10.1007/s00595-021-02406-2

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© The Author(s) 2021

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Fig. 1 — Trends in the weekly volume of each procedure (2018–2020) Shaded areas show the periods of the first and second pandemic waves (February 26-May 26, and July 1-September 29, respectively)

Fig. 1 — Trends in the weekly volume of each procedure (2018–2020) Shaded areas show the periods of the first and second pandemic waves (February 26-May 26, and July 1-September 29, respectively)