AUTHOR=Zhang Cheng , Wei Yongjun , Mardinoglu Adil , Zhang Peng TITLE=Editorial: Application of Systems Biology in Molecular Characterization and Diagnosis of Cancer JOURNAL=Frontiers in Molecular Biosciences VOLUME=8 YEAR=2021 URL=https://www.frontiersin.org/journals/molecular-biosciences/articles/10.3389/fmolb.2021.668146 DOI=10.3389/fmolb.2021.668146 ISSN=2296-889X