2570
This study reports the effects of a preparation with 50 micrograms ethinyl estradiol and 2 mg cyproterone acetate on gonadotropins , prolactin , testosterone , sex hormone binding globulin ( SHBG ) , androstenedione , and calculated free testosterone index before and after six months of treatment .
 gonadotropins, prolactin, sex hormone binding globulin, SHBG
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 gonadotropins, prolactin, sex hormone binding globulin, SHBG