Imaging of ²¹²Pb in mice with a clinical SPECT/CT.

"Declarations Ethics approval and consent to participateThe animal experiments were approved by the Institutional Committee on Research Animal Care and the Norwegian Food Safety Authority (Brumunddal, Norway, approval: FOTS ID 22197). This was a pilot study with two mice. All methods were carried out in accordance with relevant guidelines and regulations. The study was carried out in compliance with arrive guidelines. Consent for publicationNot applicable. Competing interestsThe authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. Competing interests The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest."

"Funding The present work was financially supported by the South-Eastern Norway Regional Health Authority (project number 2020028, Oslo, Norway) and by the Norwegian Research Council (Industrial Ph.D. project number 329538, Oslo, Norway). Open access funding provided by the South-Eastern Norway Regional Health Authority and University of Oslo (incl Oslo University Hospital)."