Painless Horner's syndrome in cluster headache.
Gupta
V K
VK
D003027:Cluster Headache / Q000150:complications* / Q000503:physiopathology; D006732:Horner Syndrome / Q000150:complications* / Q000503:physiopathology; D006801:Humans; D007429:Intraocular Pressure; D013997:Time Factors