10506
The aim of this study is to compare the antiproliferative effects of medroxyprogesterone acetate ( MPA ) , and metformin in oopherectomized rat endometrium .
 Chemical: medroxyprogesterone acetate; Chemical: MPA; Chemical: metformin
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: medroxyprogesterone acetate; Chemical: MPA; Chemical: metformin