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APA Citation
Tomelleri, G., Vattemi, G., Filosto, M., & Tonin, P. (2007). eyelid ptosis from sympathetic nerve dysfunction mistaken as myopathy: a simple test to identify this condition. Journal of neurology, neurosurgery and psychiatry, 78(6), 632–634. http://access.bl.uk/ark:/81055/vdc_100137793239.0x000035