Physical activity induces depression-like behavior in intact male rats.
All authors: Hodosy J, Ostatníkova D, Caganova M, Kovacsova M, Mikulajova M, Guller L, Putz Z, Celec P
Pharmacology Biochemistry and Behavior, 101 (1): 85-87, 2012
http://www.sciencedirect.com/science/article/pii/S0091305711003868