FOLH1 and posterior cortical atrophy: The average effective dose of [18F]AlF-PSMA-137 was calculated to be 1.19E-02 ± 8.70E-04 mSv/MBq (range: 1.10E-02 - 1.33E-02 mSv/MBq) which means that the 4 PCa patients received an average effective dose of 2.59 ± 0.29 mSv (range: 2.28 - 2.9 mSv).