Pianosi, P. T., E. Emerling, K. C. Mara, A. L. Weaver, and P. R. Fischer. “Aerobic Fitness in Adolescents With Chronic Pain or Chronic Fatigue: Parallels and Mechanisms?”. Journal of Rehabilitation Medicine, vol. 49, no. 5, May 2017, pp. 441-6, doi:10.2340/16501977-2221.