SLC6A3 and Parkinson disease: The authors of a study to compare FP-CIT SPECT and F-DOPA PET in patients with PD and healthy controls concluded that “the aging effect on striatal DAT binding (of FP-CIT) is relatively small and adjusting uptake values for age did not influence its accuracy for diagnosing presynaptic dopaminergic deficit” but did not report the underlying results [33].