Emergency Medicine
- An introduction to chronic progressive external ophthalmoplegia. Includes clinical features, work up, treatment and follow up.
- http://www.emedicine.com/oph/topic510.htm

NINDS Kearns-Sayre Syndrome
- Information sheet compiled by the National Institute of Neurological Disorders and Stroke.
- http://www.ninds.nih.gov/health_and_medical/disorders/kearns_sayre.htm