AUTHOR=Kui Ling , Mao Wenzhe , Majeed Aasim , Chen Jian TITLE=Editorial: Computational Tools in Inferring Cancer Tissue-of-Origin and Molecular Classification Towards Personalized Cancer Therapy, Volume II JOURNAL=Frontiers in Genetics VOLUME=12 YEAR=2021 URL=https://www.frontiersin.org/journals/genetics/articles/10.3389/fgene.2021.735103 DOI=10.3389/fgene.2021.735103 ISSN=1664-8021