References
- Murdock J, Thyparampil PJ, Yen MT. Late-onset development of eyelid ptosis in chronic progressive external ophthalmoplegia: a 30-year follow-up. Neuro-Ophthalmology 2016;40:44–46.
- Lessell S, Hedley-Whyte ET. Case 3-1985. A 33-year-old man with progressive right facial paresis and ophthalmoplegia without ptosis. N Engl J Med 1985;312:171–177.