AUTHOR=Sokolova Olga S. TITLE=Editorial: Methods in structural biology: Cryo-EM JOURNAL=Frontiers in Molecular Biosciences VOLUME=9 YEAR=2022 URL=https://www.frontiersin.org/journals/molecular-biosciences/articles/10.3389/fmolb.2022.1041373 DOI=10.3389/fmolb.2022.1041373 ISSN=2296-889X