[11C]Fentanyl: radiosynthesis and preclinical pet imaging for its pharmacokinetics. - Kim, Woochan; Wozniak, Aaron K.; Burkard, Nathaniel J.; Freaney, Michael L.; Costamagna-Soto, Ailen; O'Conor, Kelly A.; Bakhoda, Abolghasem; Eisenberg, Seth M.; Zhao, Wenjing; Liow, Jeih-San; Volkow, Nora D.; Kim, Sung Won (EJNMMI Radiopharmacy & Chemistry, 2025)