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Myotonia congenita ( MC ) is caused by a defect in the skeletal muscle chloride channel function , which may cause sustained membrane depolarisation .
 Disease: Myotonia congenita; Disease: MC; Chemical: chloride; Disease: sustained membrane depolarisation
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Disease: Myotonia congenita; Disease: MC; Chemical: chloride; Disease: sustained membrane depolarisation