21203
Sixty - two healthy , untreated women with PCOS ( age 25 . 1 +/- 3 . 6 years , BMI : 24 . 0 +/- 4 . 7 kg / m ( 2 ) ) were randomized to metformin ( n = 24 ) , simvastatin ( n = 20 ) or metformin plus simvastatin ( n = 18 ) for 3 months .
 Chemical: metformin; Chemical: simvastatin; Chemical: metformin; Chemical: simvastatin
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: metformin; Chemical: simvastatin; Chemical: metformin; Chemical: simvastatin