AUTHOR=SpaƂek Mateusz Jacek , Rutkowski Piotr TITLE=Coronavirus Disease (COVID-19) Outbreak: Hypofractionated Radiotherapy in Soft Tissue Sarcomas as a Valuable Option in the Environment of Limited Medical Resources and Demands for Increased Protection of Patients JOURNAL=Frontiers in Oncology VOLUME=10 YEAR=2020 URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2020.00993 DOI=10.3389/fonc.2020.00993 ISSN=2234-943X