Lindgärde MD, PhG, F., A. Gottsäter MD, PhD, y B. Ahrén MD, PhD. «Positive Correlation Between Tumor Necrosis Factor (TNF)-Alfa and Cardiorespiratory Fitness After Six-Months of Regular Aerobic Exercise in Peruvian Amerindian Women». Revista Médica De Chile, vol. 139, n.º 8, agosto de 2011, https://mail.revistamedicadechile.cl/index.php/rmedica/article/view/1220.