AUTHOR=Habte Frezghi , Natarajan Arutselvan TITLE=Ultra-low dose immunoPET using 64Cu-rituximab tracer for a human CD20 mouse model JOURNAL=Frontiers in Medicine VOLUME=Volume 12 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2025.1548132 DOI=10.3389/fmed.2025.1548132 ISSN=2296-858X