Antidepressant-like effect of essential oil of Perilla frutescens in a chronic, unpredictable, mild stress-induced depression model mouse - Ji, W W; Li, R P; Li, M; Wang, S Y; Zhang, X; Niu, X X; Li, W; Yan, L; Wang, Y; Fu, Q; Ma, S P (Chin J Nat Med, 2014)