22890
The in vitro intrinsic clearance ( CLint ) ratios of S - and R - ornidazole were approximately 4 . 3 in HLMs and 6 . 5 in HKMs , respectively .
 Chemical: S - and R - ornidazole
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: S - and R - ornidazole