28516
The use of steroidogenic precursors ( 25 - OH - cholesterol , and / or pregnenolone and / or testosterone ) in the in vitro gonadal incubations indicated decreased E2 production in females and 11 - KT production in males were predominately due to suppression of the terminal conversion step between T and E2 or 11 - KT .
 25 - OH - cholesterol, pregnenolone, testosterone, 11 - KT, 11 - KT
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 25 - OH - cholesterol, pregnenolone, testosterone, 11 - KT, 11 - KT