29044
In the absence of a definitive trial , and acknowledging the limitations of an indirect comparison , the available evidence suggests apixaban to be the more effective anticoagulant . Clinical Pharmacology & Therapeutics ( 2013 ) ; accepted article preview online 25 April 2013 ; doi : 10 . 1038 / clpt . 2013 . 83 .
 Chemical: apixaban
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: apixaban