8786
Gonadal steroid hormone feedback is impaired in polycystic ovarian syndrome ( PCOS ) , a common endocrine disorder characterized by hyperandrogenism and an associated increase in LH pulse frequency .
 Chemical: steroid
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: steroid