1) Ewing, D. J., Campbell, I. W., Clarke, B. F.: Assessment of cardiovascular effects in diabetic autonomic neuropathy and prognostic implications. Ann Intern Med 92: 308-311 (1980)
2) Mackay, J. D., Page, M. M., Cambridge, J. Watkins, P. J.: Diabetic autonomic neuropathy. Diabetologia 18: 471-478 (1980)
3) Dyrberg, T., Benn, J., Christiensen, J. S., Hilsted, J., Nerup, J.: Prevalence of diabetic autonomic neuropathy measured by simple bedside tests. Diabetologia 20: 190-194 (1981)