3429
We sought to test whether a prolonged infusion of magnesium sulfate ( MgSO ( 4 ) ; 40 mmol / 24 hours ) would normalize QT interval variability in patients with compensated heart failure .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
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