1. Heart rate variability: the time domain;Freeman,1997
2. Testing the autonomic nervous system;Low;Semin Neurol,2003
3. The peripheral nervous system and diabetes;Freeman,2004
4. Heart rate changes in diabetes mellitus;Ewing;Lancet,1981
5. The sympathetic nervous system in diabetic neuropathy: a clinical and pathological study;Low;Brain,1975