2545
On admission to the ICU , 117 patients ( 61 percent ) had hypomagnesemia ( serum Mg less than 1 . 5 mEq / dl ) , 66 patients ( 34 percent ) had normomagnesemia ( 1 . 5 to 2 . 0 mEq / dl ) , and ten patients ( 5 percent ) had hypermagnesemia ( greater than 2 . 0 mEq / dl ) .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 None