A. Hirao, H. Nagahama, T. Tsuboi, M. Hirao, Y. Tahara, and S. Shibata, «Combination of Starvation Interval and Food Volume Determines the Phase of Liver Circadian Rhythm in Per2: Luc Knock-in Mice under Two Meals per Day Feeding». American Journal of Physiology-Gastrointestinal and Liver Physiology 299, no. 5 (2010): G1045–1053.