H. S. Hassan, Z. Almadfai, and F. Abdulkareem, “Obesity Impact on Heart Rate Variability Indices and the Modulation Effect of Regular Physical Activity”., JFacMedBagdad, vol. 56, no. 2, pp. 224–228, Jul. 2014, doi: 10.32007/jfacmedbagdad.562482.