Visiting a forest, but not a city, increases human natural killer activity and expression of anti-cancer proteins.
Li Q, Morimoto K, Kobayashi M, Inagaki H, Katsumata M, Hirata Y, Hirata K, Suzuki H, Li YJ, Wakayama Y, Kawada T, Park BJ, Ohira T, Matsui N, Kagawa T, Miyazaki Y, Krensky AM.
Li Q, et al. Among authors: li yj.
Int J Immunopathol Pharmacol. 2008 Jan-Mar;21(1):117-27. doi: 10.1177/039463200802100113.
Int J Immunopathol Pharmacol. 2008.
PMID: 18336737
Free article.