From the Department of Nuclear Medicine, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, Guangdong Province, China.

Received for publication July 19, 2023; revision accepted August 12, 2023.

Conflicts of interest and sources of funding: none declared.

Correspondence to: Rusen Zhang, MD, Department of Nuclear Medicine, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou 510095, Guangdong Province, China. E-mail: [email protected].