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Am J Dis Child. 1915;X(1):16-26. doi:10.1001/archpedi.1915.04110010019002.
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Complete postmortems in cases of this condition have been reported by Spiller, Baudouin, Lereboullet-Baudouin, Collier-Holmes, Rothmann, Beevor and Kaumheimer; Reyher-Helmholz in one necropsy examined only the musculature, and Bing, Collier-Holmes and Skoog respectively, examined a small piece of muscle excised from the patient during life.

The scarcity of the anatomic examinations recorded, especially in the American literature, the only reports given being those by Spiller-Smith and Skoog, justifies the publication here of the results of the examination of pieces of muscle and nerve in the case of myatonia congenita, which I reported in the American Journal of Diseases of Children, October, 1914.

Sept. 8, 1914, the baby spoken of in that report became cyanotic while nursing and died suddenly, about one week after my last visit. A necropsy to examine the entire nervous system and the organs of inner secretion and to establish the cause of the sudden death (thymus,


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