Congenital myasthenia gravis with intermittent invagination of the posterior tracheal wall.

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@article{Johnson1972CongenitalMG, title={Congenital myasthenia gravis with intermittent invagination of the posterior tracheal wall.}, author={Paul E Johnson and J R Ausband}, journal={The Annals of otology, rhinology, and laryngology}, year={1972}, volume={81 6}, pages={772-7} }