@article{ChenShiauTsengetal.2010,
  author    = {Jin-Long Chen and Yuo-Hsien Shiau and Yin-Jiun Tseng and Hung-Wen Chiu and Tzu-Chien Hsiao and Niels Wessel and J{\"u}rgen Kurths and Woei-Chyn Chu},
  title     = {Concurrent sympathetic activation and vagal withdrawal in hyperthyroidism : evidence from detrended fluctuation analysis of heart rate variability},
  doi       = {10.1016/j.physa.2009.12.062},
  url       = {http://www.sciencedirect.com/science/journal/03784371},
  year      = {2010},
}