1. Dysautonomia -- The Cleveland Clinic
Dysautonomia refers to a disorder of autonomic nervous system (ANS) function. Patients with chronic, progressive, generalized dysautonomia in the setting of central nervous system degeneration have a generally poor long-term prognosis.
http://www.clevelandclinic.org/health/health-info/docs/1200/1271.asp?index=6004

2. System, autonomic nervous -- Information from MedicineNet
System, autonomic nervous definition - Medical Dictionary definitions of popular medical terms. medical dictionary A-Z List > System, autonomic nervous. Online Medical Dictionary and glossary with medical definitions.
http://www.medterms.com/script/main/art.asp?articlekey=5690

3. Dysautonomia -- Information from Healthwise
Provides support, educational material and medical referrals for persons who have dysautonomia (a disorder of the autonomic nervous system). For evidence-based information on diseases, conditions. For evidence-based information on diseases,...
http://www.everettclinic.com/kbase/shc/shc29dya.htm