AUTHOR=Nicolazzo Chiara , Belardinilli Francesca , Caponnetto Salvatore , Gradilone Angela , Cortesi Enrico , Giannini Giuseppe , Gazzaniga Paola TITLE=Why the Therapeutic Impact of RAS Mutation Clearance in Plasma ctDNA Deserves to Be Further Explored in Metastatic Colorectal Cancer JOURNAL=Frontiers in Oncology VOLUME=9 YEAR=2019 URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2019.01414 DOI=10.3389/fonc.2019.01414 ISSN=2234-943X