title: Relapsing alternating ptosis in two siblings.
authors.forename: J P
authors.initials: JP
authors.lastname: Sieb
authors.forename: A
authors.initials: A
authors.lastname: Hartmann
mesh_terms: D001342:Autonomic Nervous System Diseases / Q000150:complications* / Q000175:diagnosis* / Q000235:genetics; D001763:Blepharoptosis / Q000209:etiology*; D003937:Diagnosis, Differential; D005260:Female; D020773:Headache Disorders / Q000209:etiology*; D006732:Horner Syndrome / Q000175:diagnosis; D006801:Humans; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D012008:Recurrence