Appendix A  Supplementary data
The following are the Supplementary data to this article:
Supplementary figure 1 Switzerland map with participating radiation-oncology departments. University Hospitals are marked with a red pinpoint. One university hospital and two satellite centers. Aarau and Baden. Cities in bold refer to radiation oncology departments confronted to COVID-19 patients up to the 7th April, 2020.
Supplementary data 1
Rate of COVID-19 positive patients (Fig. 2A) and estimated reduction of daily activity (Fig 2B) in the Swiss radiation oncology departments on April 7th, 2020.
Supplementary data 2
Total published ASTRO/ESTRO papers on COVID-19 over time versus COVID-19 deaths in Switzerland [13]. In green bars, numbers of survey participants per survey date completion.