Nonuniformity in a Certified 68Ge PET Cylinder Phantom: Implications for Normalization Quality Assurance. - Kheruka S; Al-Rashdi S; Al-Maymani N; Al-Balushi A; Al-Raii T; Al-Makhmari N; Jayakrishnan V; Jain A; Al-Riyami K; Al-Sukaiti R (Journal of nuclear medicine technology, 2026)