AUTHOR=Bocci Matteo , Fabbri Francesco , Neves Rui P.L. , Rossi Elisabetta TITLE=Editorial: Liquid biopsy: A tool for better understanding of the metastatic process ecosystem JOURNAL=Frontiers in Oncology VOLUME=12 YEAR=2022 URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2022.951158 DOI=10.3389/fonc.2022.951158 ISSN=2234-943X