Nature versus urban hiking for Veterans with post-traumatic stress disorder: a pilot randomised trial conducted in the Pacific Northwest USA.
Littman AJ, Bratman GN, Lehavot K, Engel CC, Fortney JC, Peterson A, Jones A, Klassen C, Brandon J, Frumkin H. Nature versus urban hiking for Veterans with post-traumatic stress disorder: a pilot randomised trial conducted in the Pacific Northwest USA. BMJ Open. 2021 09 23; 11(9):e051885.