Preclinical evaluation of new GRPR-antagonists with improved metabolic stability for radiotheranostic use in oncology. - Kanellopoulos, Panagiotis; Mattsson, Adam; Abouzayed, Ayman; Obeid, Karim; Nock, Berthold A.; Tolmachev, Vladimir; Maina, Theodosia; Orlova, Anna (EJNMMI Radiopharmacy & Chemistry, 2024)