AUTHOR=Özyar Enis , Ben-David Merav TITLE=Obituary: Frank J. Lagerwaard MD, PhD JOURNAL=Frontiers in Oncology VOLUME=13 YEAR=2023 URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2023.1274666 DOI=10.3389/fonc.2023.1274666 ISSN=2234-943X