*4.3. Radiation Safety for the Research and Veterinary Sta*ff

Research staff administering the <sup>213</sup>Bi-labeled antibody and providing animal care wore electronic dosimeters (DMC 3000, Mirion Technologies, Smyrna, GA, USA). Animals were housed in an isolation area suitable for work with radioisotopes for approximately 8 h after the final administration and released from isolation when less than 0.1% of the administered <sup>213</sup>Bi remained.
