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Myotonia congenital
- ... underlie the muscle stiffness characteristic of potassium-aggravated myotonia. More About This Health Condition MedlinePlus Genetics provides information about Congenital myasthenic syndrome More About This Health Condition Na( ...
- ... with this disorder often have prolonged muscle contractions (myotonia) and are not able to relax certain muscles ... their cells. People born with the more severe, congenital form of myotonic dystrophy type 1 tend to ...