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A review of the literature revealed that a positive edrophonium response has been reported in a majority of cases of myasthenia gravis (MG) and overlap myasthenic syndrome and in some cases of the Lambert\u2013Eaton myasthenic syndrome, botulism, congenital myasthenic syndrome, drug\u2010induced myasthenic syndrome, the Guillain\u2010Barre syndrome, and amyotrophic lateral sclerosis. From this, we conclude that anunequivocally positive edrophonium test alone is not necessarily diagnostic of MG and that the diagnosis of MG should be based on the clinical features together with edrophonium\u2010responsiveness and other laboratory findings.<\/jats:p>","DOI":"10.1002\/mus.880130302","type":"journal-article","created":{"date-parts":[[2005,1,1]],"date-time":"2005-01-01T09:35:32Z","timestamp":1104572132000},"page":"187-191","source":"Crossref","is-referenced-by-count":49,"title":["Edrophonium responsiveness not necessarily diagnostic of myasthenia gravis"],"prefix":"10.1002","volume":"13","author":[{"given":"Shin J.","family":"Oh","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hyo 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