Q. LI, A. NAKADAI, H. INAGAKI, M. KATSUMATA, T. SHIMIZU, Y. HIRATA, H. HIRATA, H. SUZUKI, Y. MIYAZAKI, T. KAGAWA, Y. KOYAMA, A.M. KRENSKY, K. MORIMOTO, T. KAWADA. (2006). A FOREST BATHING TRIP ENHANCES HUMAN NATURAL KILLER ACTIVITY