Sadlon AE, Lamson DW
Alternative Medicine Review: A Journal of Clinical Therapeutic, 2010
A day trip to a forest park increases human natural killer activity and the expression of anti-cancer proteins in male subjects
Li Q, Kobayashi M, Inagaki H, Hirata Y, Li YJ, Hirata K, Shimizu T, Suzuki H, Katsumata M, Wakayama Y, Kawada T, Ohira T, Matsui N, Kagawa T
Journal of Biological Regulators and Homeostatic Agents, 2010