RT Journal Article SR Electronic T1 Is 211At Really Happening? JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 681 OP 683 DO 10.2967/jnumed.125.269699 VO 66 IS 5 A1 Zimmermann, Richard YR 2025 UL http://jnm.snmjournals.org/content/66/5/681.abstract