AUTHOR=Nathan Daniel I. , Mascarenhas John TITLE=A smoking gun? Clonal expansion in response to cigarette exposure JOURNAL=Frontiers in Oncology VOLUME=13 YEAR=2023 URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2023.1252643 DOI=10.3389/fonc.2023.1252643 ISSN=2234-943X