23440
Compared with WCM , 1 RCT showed significant effects of XXMD for improving mRS after stroke ( p < 0 . 05 ) ; 3 RCTs for improving NIHSS scores [ n = 186 , weighted mean difference ( WMD ) : - 1 . 86 , 95 % CI : - 3 . 25 to - 0 . 48 , z = 2 . 63 , p < 0 . 01 ] ; 7 RCTs for improving the clinical effective rate [ n = 531 , risk ratio ( RR ) = 1 . 17 , 95 % CI , 1 . 09 to 1 . 26 , z = 4 . 38 , p < 0 . 01 ] .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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