Caliandro P, Evoli A, Stålberg E, Granata G, Tonali P, Padua L (December 2009). "The difficulty in confirming clinical diagnosis of myasthenia gravis in a seronegative patient: a possible neurophysiological approach". Neuromuscular Disorders. 19 (12): 825–827. doi:10.1016/j.nmd.2009.09.005. PMID19846306. S2CID25219973.
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US 2647924, Aeschlimann JA, Stempel A, issued 1953
Caliandro P, Evoli A, Stålberg E, Granata G, Tonali P, Padua L (December 2009). "The difficulty in confirming clinical diagnosis of myasthenia gravis in a seronegative patient: a possible neurophysiological approach". Neuromuscular Disorders. 19 (12): 825–827. doi:10.1016/j.nmd.2009.09.005. PMID19846306. S2CID25219973.
Caliandro P, Evoli A, Stålberg E, Granata G, Tonali P, Padua L (December 2009). "The difficulty in confirming clinical diagnosis of myasthenia gravis in a seronegative patient: a possible neurophysiological approach". Neuromuscular Disorders. 19 (12): 825–827. doi:10.1016/j.nmd.2009.09.005. PMID19846306. S2CID25219973.