The effect of respiratory oscillations in heart rate on detrended fluctuation analysisRathinaswamy B. Govindan, Srinivas Kota, Tareq Al-Shargabi, Christopher B. Swisher and Adre du PlessisEur. Phys. J. B, 90 10 (2017) 191DOI: https://doi.org/10.1140/epjb/e2017-80378-x