C. M. Marano, C. I. Workman, C. H. Lyman, E. Kramer, C. R. Hermann, Y. Ma, V. Dhawan, T. Chaly, D. Eidelberg, and G. S. Smith, «The Relationship between Fasting Serum Glucose and Cerebral Glucose Metabolism in Late-life Depression and Normal Aging». Psychiatry Research 222, nos. 1–2 (Apr. 2014): 84–90.