Noushad , Shamoon, et al. “Effect of Nature-Based Physical Activity on Post-Traumatic Growth Among Healthcare Providers With Post-Traumatic Stress: Protocol for a Randomized Controlled Trial”. International Journal of Endorsing Health Science Research, vol. 8, no. 4, Dec. 2020, pp. 295-01, doi:10.29052/IJEHSR.v8.i4.2020.295-301.