Karalija, N., Papenberg, G., Wåhlin, A., Johansson, J., Andersson, M., Axelsson, J., et al. (2021). Sex differences in dopamine integrity and brain structure among healthy older adults: Relationships to episodic memory. Neurobiology of Aging, 105, 272-279. doi:10.1016/j.neurobiolaging.2021.04.022.