996
Serial followup strength data for 2 patients were compared to change in creatinine kinase ( CK ) levels .
 GENE: creatinine kinase; GENE: CK
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: creatinine kinase; GENE: CK