29425
4 - Hydroxytamoxifen - stimulated processing of cyclin E is mediated via G protein - coupled receptor 30 ( GPR30 ) and accompanied by enhanced migration in MCF - 7 breast cancer cells .
 4 - Hydroxytamoxifen
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 4 - Hydroxytamoxifen