“Memory retrieval by activating engram cells in mouse models of early Alzheimer’s disease,” by Dheeraj S. Roy, Autumn Arons, Teryn I. Mitchell, Michele Pignatelli, Tomas J. Ryan & Susumu Tonegawa (Vol. 531, No. 7595, March 24, 2016, p. 508-512).
www.nature.com/nature/journal/v531/n7595/abs/nature17172.html