in order to elucidate the physiological significance of autonomic neuropathy in juvenile diabetics , cardiovascular , hormonal and metabolic functions have been investigated in three groups of juvenile diabetics : one group had no signs of neuropathy , one group had presumably slight autonomic neuropathy ( reduced beat-to-beat variation in heart rate during hyperventilation ) and one group had clinically severe autonomic neuropathy , defined by presence of orthostatic hypotension .
C0007226
cardiovascular
C0428977
reduced