The UBCoS Multigenerational study-based paper A Life-Course Study of Cognitive Reserve in Dementia-From Childhood to Old Age by Dekhtyar and co-workers was commented on by Dr A Brodziak in the Am J Geriatr Psych (link) and a response by the authors was published in the same issue.

Dekhtyar S, Wang HX, Scott K, Goodman A, Koupil I, Herlitz A. Response to Brodziak's Letter to the Editor. Am J Geriatr Psychiatry. 2015;23(11):1204-6. doi:10.1016/j.jagp.2015.05.001