1. Ptosis;Caplan;J Neurol Neurosurg Psychiatry,1974
2. Conjugacy of eyelid movements in vertical eye saccades;Wouters;Invest Ophthalmol Vis Sci,1995
3. Nervous control of eyelid function. A review of clinical, experimental and pathological data;Schmidtke;Brain,1992
4. A neuroanatomical analysis of lid-eye coordination in ptosis and downgaze paralysis;Büttner-Ennever;Clin Neuropathol,1996
5. Brainstem circuits controlling lid-eye coordination in monkey;Horn;Prog Brain Res,2008