4433
Univariate and adjusted analyses showed that the risk increased with the length of treatment ( p = 0 . 0001 ) or the cumulative dose of tamoxifen received ( p = 0 . 0001 ) , irrespective of the daily dose .
 Chemical: tamoxifen
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: tamoxifen